Powerhead Gasket - Johnson Evinrude

B/B Chevy Valve Spring Oiling System
Your Price:
$189.99

B/B Chevy Valve Spring Oiling System

755-8482

B/B Chevy Valve Spring Oiling System

Valve cover rails are a Keith Eickert exclusive product that has been designed to solve the problem of excessive valve train failure. Valve spring fatigue and failure cause by long duration engine operation at higher engine rpm’s. Valve spring oilers are an industry standard in many forms of professional motorsports. Now this system can easily be installed on nearly all big block chevrolet application to dramatically extend valve train life. The oiling rail is 3/8" thick and incorporates 8 precision oil metering spray jets that distribute additional oil towards the valve spring. Simple 1/16" NPT single female oil inlets per rail provide ease of plumbing. Sold in pairs.

TECH: On engines with a higher average rpm and power band the stock oil flow thru the valve train can be marginal at best. This is a very common cause of premature wear and escalating oil temps. Most conditions on endurance applications such as performance boats or off shore race boats plumbing a separate pressurized spray bar to cool valve springs and rockers that feeds from either a passage in the block or a separate oil supply has proven to be extremely key to long term durability, because the rapid cycling torsional stress on valve springs can easily cause them to heat to over 700F if not bathed in a constant flow of oil that absorbs and carry's away the heat that builds up rapidly, many shaft rocker systems have strategically located oil shaft holes that direct flowing oil to the valve springs and rockers. *most people don,t understand that almost 1/2 of an engines total heat comes from the valve train and bearing friction.


Gasket Kit
Your Price:
$152.99

Normally Ships in 7-10 Days. Rush proccessing is available on Mallory items: See here.

Gasket Kit

676-18-4428

Interchanges/Replaces

Johnson/Evinrude Outboard

  • 437725

Mallory

  • 9-64106

List of Containing Parts

Sierra Item # OE/Competitor # Quantity Description Image Comments
18-0492Johnson/Evinrude Outboard
  • 340919
  • 345257
2Head Gasket
18-0412Johnson/Evinrude Outboard
  • 337068
2Thermostat Gasket
18-0690Johnson/Evinrude Outboard
  • 347205
1Base Gasket N/A
18-0161GLM
  • 35540
Johnson/Evinrude Outboard
  • 331532
Mallory
  • 9-60443
1Lower Manifold Gasket N/A
18-0142GLM
  • 35390
Johnson/Evinrude Outboard
  • 328622
Mallory
  • 9-60442
1Intake Manifold Gasket N/A
18-0130GLM
  • 35740
Johnson/Evinrude Outboard
  • 332266
Mallory
  • 9-60446
6Reed Block Gasket
18-0987GLM
  • 35750
Johnson/Evinrude Outboard
  • 332319
Mallory
  • 9-60450
3Throttle Body to Manifold Gasket
18-0978GLM
  • 35730
Johnson/Evinrude Outboard
  • 331598
1Cover to Base Gasket N/A
NSSJohnson/Evinrude Outboard
  • 344472
1GasketNo ImageN/A

Powerhead Base Gasket
Your Price:
$6.99

Normally Ships in 7-10 Days. Rush proccessing is available on Mallory items: See here.

Powerhead Base Gasket

676-18-2852

Interchanges/Replaces

GLM

  • 33710

Johnson/Evinrude Outboard

  • 330621

Mallory

  • 9-60445

Powerhead Gasket Set
Your Price:
$120.99

Normally Ships in 7-10 Days. Rush proccessing is available on Mallory items: See here.

Powerhead Gasket Set

676-18-4402

Interchanges/Replaces

Johnson/Evinrude Outboard

  • 437779
  • 439539

Mallory

  • 9-64100

List of Containing Parts

Sierra Item # OE/Competitor # Quantity Description Image Comments
18-0692Johnson/Evinrude Outboard
  • 339601
  • 343853
1Base Gasket N/A
18-0695Johnson/Evinrude Outboard
  • 336389
  • 345045
1Intake Gasket N/A
18-0696Johnson/Evinrude Outboard
  • 336388
  • 345044
1Intake Gasket N/A
18-1284Johnson/Evinrude Outboard
  • 335819
2Molded Intake Port Gasket

Powerhead Gasket Set
Your Price:
$48.99

Normally Ships in 7-10 Days. Rush proccessing is available on Mallory items: See here.

Powerhead Gasket Set

676-18-4321

Interchanges/Replaces

GLM

  • 39390

Johnson/Evinrude Outboard

  • 398047
  • 438904

Mallory

  • 9-64101

List of Containing Parts

Sierra Item # OE/Competitor # Quantity Description Image Comments
18-0118GLM
  • 33740
Johnson/Evinrude Outboard
  • 325092
Mallory
  • 9-60427
3Carburetor Gasket N/A
18-0975GLM
  • 34420
Johnson/Evinrude Outboard
  • 333008
Mallory
  • 9-60419
1Carburetor to Silencer Gasket N/A
18-0989GLM
  • 34430
Johnson/Evinrude Outboard
  • 321794
Mallory
  • 9-60418
1Air Silencer Gasket N/A
18-1202GLM
  • 35440
Johnson/Evinrude Outboard
  • 329830
1Thermostat Cover Gasket N/A
18-1205GLM
  • 35430
Johnson/Evinrude Outboard
  • 329828
Mallory
  • 9-60425
1Adapter Cover Gasket N/A
18-1207Johnson/Evinrude Outboard
  • 329833
  • 343863
Mallory
  • 9-60432
1Exhaust Manifold Gasket N/A
18-1212GLM
  • 34530
Johnson/Evinrude Outboard
  • 326926
Mallory
  • 9-60439
1Intake Manifold Gasket N/A
18-1219GLM
  • 46100
Johnson/Evinrude Outboard
  • 320880
1Grommet Gasket (V6 Crossflow) N/A
18-1221GLM
  • 46110
Johnson/Evinrude Outboard
  • 330273
1Retainer Gasket (V4/V6 Loop Charge) N/A
18-3836GLM
  • 34280
Johnson/Evinrude Outboard
  • 329836
Mallory
  • 9-63821
1Head Gasket N/A
NSSJohnson/Evinrude Outboard
  • 336308
1GasketNo ImageN/A

Powerhead Gasket Set
Your Price:
$96.99

Normally Ships in 7-10 Days. Rush proccessing is available on Mallory items: See here.

Powerhead Gasket Set

676-18-4302

Interchanges/Replaces

GLM

  • 39350

Johnson/Evinrude Outboard

  • 390078
  • 439084

Mallory

  • 9-64102

List of Containing Parts

Sierra Item # OE/Competitor # Quantity Description Image Comments
18-0118GLM
  • 33740
Johnson/Evinrude Outboard
  • 325092
Mallory
  • 9-60427
3Carburetor Gasket N/A
18-0951GLM
  • 34860
Johnson/Evinrude Outboard
  • 317305
1Carburetor to Manifold Gasket N/A
18-0975GLM
  • 34420
Johnson/Evinrude Outboard
  • 333008
Mallory
  • 9-60419
1Carburetor to Silencer Gasket N/A
18-0989GLM
  • 34430
Johnson/Evinrude Outboard
  • 321794
Mallory
  • 9-60418
1Air Silencer Gasket N/A
18-2543GLM
  • 34310
Johnson/Evinrude Outboard
  • 318609
  • 766871
1Water Jacket Gasket N/A
18-2548GLM
  • 34630
Johnson/Evinrude Outboard
  • 317226
  • 332108
1Thermostat Cover Gasket N/A
18-2865GLM
  • 33410
  • 34550
Johnson/Evinrude Outboard
  • 313763
Mallory
  • 9-60424
1Powerhead Base Gasket N/A
18-2913GLM
  • 34610
Johnson/Evinrude Outboard
  • 319097
  • 331916
Mallory
  • 9-60430
2Exhaust Cover Gasket N/A
18-2938GLM
  • 34620
Johnson/Evinrude Outboard
  • 317227
  • 331917
Mallory
  • 9-60431
1Exhaust Cover Gasket N/A
18-2960GLM
  • 33400
Johnson/Evinrude Outboard
  • 313413
Mallory
  • 9-63827
1Head Gasket N/A
18-1212GLM
  • 34530
Johnson/Evinrude Outboard
  • 326926
Mallory
  • 9-60439
1Intake Manifold Gasket N/A
NSSJohnson/Evinrude Outboard
  • 321796
  • 319283
  • 331016
1Gasket, Adapter to plateNo ImageN/A

Powerhead Gasket Set
Your Price:
$165.99

Normally Ships in 7-10 Days. Rush proccessing is available on Mallory items: See here.

Powerhead Gasket Set

676-18-4406

Interchanges/Replaces

Johnson/Evinrude Outboard

  • 437155

Mallory

  • 9-64107

List of Containing Parts

Sierra Item # OE/Competitor # Quantity Description Image Comments
18-1285Johnson/Evinrude Outboard
  • 335403
1Molded Intake Port Gasket N/A
18-0694Johnson/Evinrude Outboard
  • 336226
  • 344341
1Intake Gasket N/A
18-0693Johnson/Evinrude Outboard
  • 336227
  • 344347
1Intake Gasket N/A
18-7110GLM
  • 81540
Johnson/Evinrude Outboard
  • 335523
Mallory
  • 9-63834
6O-Ring
NSSJohnson/Evinrude Outboard
  • 335419
1Base GasketNo ImageN/A
NSSJohnson/Evinrude Outboard
  • 335404
1Seal, Manifold to Carb.No ImageN/A

Powerhead Gasket Set
Your Price:
$173.99

Normally Ships in 7-10 Days. Rush proccessing is available on Mallory items: See here.

Powerhead Gasket Set

676-18-4323

Interchanges/Replaces

GLM

  • 39410

Johnson/Evinrude Outboard

  • 432571
  • 436891

Mallory

  • 9-64108

List of Containing Parts

Sierra Item # OE/Competitor # Quantity Description Image Comments
18-0130GLM
  • 35740
Johnson/Evinrude Outboard
  • 332266
Mallory
  • 9-60446
6Reed Block Gasket N/A
18-0142GLM
  • 35390
Johnson/Evinrude Outboard
  • 328622
Mallory
  • 9-60442
1Intake Manifold Gasket N/A
18-0155Johnson/Evinrude Outboard
  • 330412
1Rectifier Mounting Gasket N/A
18-0161GLM
  • 35540
Johnson/Evinrude Outboard
  • 331532
Mallory
  • 9-60443
1Lower Manifold Gasket N/A
18-0412Johnson/Evinrude Outboard
  • 337068
2Thermostat Gasket N/A
18-0965GLM
  • 35780
Johnson/Evinrude Outboard
  • 333879
Mallory
  • 9-60414
1Adapter Outer Powerhead Gasket N/A
18-0978GLM
  • 35730
Johnson/Evinrude Outboard
  • 331598
1Cover to Base Gasket N/A
18-0987GLM
  • 35750
Johnson/Evinrude Outboard
  • 332319
Mallory
  • 9-60450
3Throttle Body to Manifold Gasket N/A
18-1219GLM
  • 46100
Johnson/Evinrude Outboard
  • 320880
2Grommet Gasket (V6 Crossflow) N/A
18-1221GLM
  • 46110
Johnson/Evinrude Outboard
  • 330273
2Retainer Gasket (V4/V6 Loop Charge) N/A
18-1222GLM
  • 46130
Johnson/Evinrude Outboard
  • 394408
2Thermostat Diaphragm Gasket (V4/V6 Loop Charge) N/A
18-2074GLM
  • 86440
Johnson/Evinrude Outboard
  • 318451
  • 322575
  • 339620
1Oil Seal N/A
18-2075GLM
  • 86470
Johnson/Evinrude Outboard
  • 0332942
  • 326751
  • 353076
1Oil Seal N/A
18-3839GLM
  • 34590
Johnson/Evinrude Outboard
  • 333670
  • 334726
Mallory
  • 9-63825
2Head Gasket N/A
18-7418GLM
  • 82460
Johnson/Evinrude Outboard
  • 326741
4O-Ring N/A

Powerhead Gasket Set
Your Price:
$111.99

Normally Ships in 7-10 Days. Rush proccessing is available on Mallory items: See here.

Powerhead Gasket Set

676-18-4322

Interchanges/Replaces

GLM

  • 39400

Johnson/Evinrude Outboard

  • 432570

Mallory

  • 9-64109

List of Containing Parts

Sierra Item # OE/Competitor # Quantity Description Image Comments
18-0130GLM
  • 35740
Johnson/Evinrude Outboard
  • 332266
Mallory
  • 9-60446
4Reed Block Gasket N/A
18-0138GLM
  • 35370
Johnson/Evinrude Outboard
  • 328590
Mallory
  • 9-60423
1Powerhead Base Gasket N/A
18-0142GLM
  • 35390
Johnson/Evinrude Outboard
  • 328622
Mallory
  • 9-60442
1Intake Manifold Gasket N/A
18-0144GLM
  • 35400
Johnson/Evinrude Outboard
  • 328626
Mallory
  • 9-60447
4Reed Block Gasket N/A
18-0155Johnson/Evinrude Outboard
  • 330412
1Rectifier Mounting Gasket N/A
18-0987GLM
  • 35750
Johnson/Evinrude Outboard
  • 332319
Mallory
  • 9-60450
2Throttle Body to Manifold Gasket N/A
18-1219GLM
  • 46100
Johnson/Evinrude Outboard
  • 320880
2Grommet Gasket (V6 Crossflow) N/A
18-1221GLM
  • 46110
Johnson/Evinrude Outboard
  • 330273
2Retainer Gasket (V4/V6 Loop Charge) N/A
18-1222GLM
  • 46130
Johnson/Evinrude Outboard
  • 394408
2Thermostat Diaphragm Gasket (V4/V6 Loop Charge) N/A
18-2074GLM
  • 86440
Johnson/Evinrude Outboard
  • 318451
  • 322575
  • 339620
1Oil Seal N/A
18-2075GLM
  • 86470
Johnson/Evinrude Outboard
  • 0332942
  • 326751
  • 353076
1Oil Seal N/A
18-3866GLM
  • 35930
Johnson/Evinrude Outboard
  • 333549
  • 340115
Mallory
  • 9-63826
2Head Gasket N/A
18-7418GLM
  • 82460
Johnson/Evinrude Outboard
  • 326741
4O-Ring N/A
NSSJohnson/Evinrude Outboard
  • 331101
1Gasket, Cover to baseNo ImageN/A

Powerhead Gasket Set
Your Price:
$124.99

Normally Ships in 7-10 Days. Rush proccessing is available on Mallory items: See here.

Powerhead Gasket Set

676-18-4310

Interchanges/Replaces

GLM

  • 39354

Johnson/Evinrude Outboard

  • 396750

Mallory

  • 9-64110

List of Containing Parts

Sierra Item # OE/Competitor # Quantity Description Image Comments
18-0138GLM
  • 35370
Johnson/Evinrude Outboard
  • 328590
Mallory
  • 9-60423
1Powerhead Base Gasket N/A
18-0140GLM
  • 35380
Johnson/Evinrude Outboard
  • 328604
2Air Box Gasket N/A
18-0142GLM
  • 35390
Johnson/Evinrude Outboard
  • 328622
Mallory
  • 9-60442
1Intake Manifold Gasket N/A
18-0155Johnson/Evinrude Outboard
  • 330412
2Rectifier Mounting Gasket N/A
18-0978GLM
  • 35730
Johnson/Evinrude Outboard
  • 331598
2Cover to Base Gasket N/A
18-2074GLM
  • 86440
Johnson/Evinrude Outboard
  • 318451
  • 322575
  • 339620
1Oil Seal N/A
18-2075GLM
  • 86470
Johnson/Evinrude Outboard
  • 0332942
  • 326751
  • 353076
1Oil Seal N/A
18-3837GLM
  • 34400
Johnson/Evinrude Outboard
  • 328623
Mallory
  • 9-63820
2Head Gasket N/A
18-7418GLM
  • 82460
Johnson/Evinrude Outboard
  • 326741
4O-Ring N/A

Powerhead Gasket Set
Your Price:
$103.99

Normally Ships in 7-10 Days. Rush proccessing is available on Mallory items: See here.

Powerhead Gasket Set

676-18-4304-1

Interchanges/Replaces

GLM

  • 39090

Johnson/Evinrude Outboard

  • 391988

Mallory

  • 9-64111

List of Containing Parts

Sierra Item # OE/Competitor # Quantity Description Image Comments
18-0134GLM
  • 34540
Johnson/Evinrude Outboard
  • 327707
Mallory
  • 9-60428
3Carburetor to Manifold Gasket N/A
18-0148GLM
  • 33610
Johnson/Evinrude Outboard
  • 329718
Mallory
  • 9-60441
1Intake Manifold Gasket N/A
18-0979GLM
  • 34380
Johnson/Evinrude Outboard
  • 321183
Mallory
  • 9-60416
1Air Silencer Gasket N/A
18-0991GLM
  • 33660
Johnson/Evinrude Outboard
  • 321907
6Leaf Plate Gasket N/A
18-0995GLM
  • 34470
Johnson/Evinrude Outboard
  • 323222
1Powerhead Base Gasket N/A
18-2001GLM
  • 86030
Johnson/Evinrude Outboard
  • 0330137
  • 310600
  • 313398
  • 317761
  • 321463
  • 321668
Mallory
  • 9-76212
OMC Stern Drive
  • 310600
  • 313398
  • 321463
  • 330137
1Oil Seal N/A
18-2074GLM
  • 86440
Johnson/Evinrude Outboard
  • 318451
  • 322575
  • 339620
1Oil Seal
18-2544GLM
  • 34370
Johnson/Evinrude Outboard
  • 321028
Mallory
  • 9-60452
2Water Jacket Cover Gasket N/A
18-2545GLM
  • 33590
Johnson/Evinrude Outboard
  • 321182
Mallory
  • 9-60433
1Exhaust Plate Gasket N/A
18-2546GLM
  • 33600
Johnson/Evinrude Outboard
  • 321184
Mallory
  • 9-60449
2Thermostat Gasket N/A
18-2547GLM
  • 34450
Johnson/Evinrude Outboard
  • 322858
1Water Passage Cover Gasket N/A
18-2549GLM
  • 33620
Johnson/Evinrude Outboard
  • 321435
Mallory
  • 9-60464
1Exhaust Cover Gasket N/A
18-2857GLM
  • 33750
Johnson/Evinrude Outboard
  • 319771
  • 386573
Mallory
  • 9-60463
3Air Silencer Gasket
18-2876GLM
  • 33280
Johnson/Evinrude Outboard
  • 307133
Mallory
  • 9-60426
OMC Stern Drive
  • 307133
6Bypass Cover Gasket N/A
18-2964GLM
  • 33870
Johnson/Evinrude Outboard
  • 320745
  • 335360
  • 766779
Mallory
  • 9-63829
2Head Gasket N/A
18-8307GLM
  • 86790
Johnson/Evinrude Outboard
  • 0331103
1Lower Main Seal N/A

Powerhead Gasket Set
Your Price:
$98.99

Normally Ships in 7-10 Days. Rush proccessing is available on Mallory items: See here.

Powerhead Gasket Set

676-18-4303-1

Interchanges/Replaces

GLM

  • 39080

Johnson/Evinrude Outboard

  • 389556
  • 391300
  • 439085

Mallory

  • 9-64112

List of Containing Parts

Sierra Item # OE/Competitor # Quantity Description Image Comments
18-0102GLM
  • 33680
Johnson/Evinrude Outboard
  • 323469
1Exhaust Manifold Gasket N/A
18-0117GLM
  • 34300
Johnson/Evinrude Outboard
  • 317955
Mallory
  • 9-60435
1Exhaust Plate Gasket N/A
18-0134GLM
  • 34540
Johnson/Evinrude Outboard
  • 327707
Mallory
  • 9-60428
2Carburetor to Manifold Gasket
18-0850GLM
  • 34080
Johnson/Evinrude Outboard
  • 303615
Mallory
  • 9-60436
1Fuel Pump Gasket N/A
18-0953GLM
  • 34870
Johnson/Evinrude Outboard
  • 317951
1Water Passage Gasket N/A
18-0977GLM
  • 33650
Johnson/Evinrude Outboard
  • 321897
  • 332369
Mallory
  • 9-60448
2Thermostat Gasket N/A
18-0985GLM
  • 33630
Johnson/Evinrude Outboard
  • 321722
Mallory
  • 9-60417
1Air Silencer Gasket N/A
18-0991GLM
  • 33660
Johnson/Evinrude Outboard
  • 321907
4Leaf Plate Gasket N/A
18-2547GLM
  • 34450
Johnson/Evinrude Outboard
  • 322858
1Water Passage Cover Gasket N/A
18-2857GLM
  • 33750
Johnson/Evinrude Outboard
  • 319771
  • 386573
Mallory
  • 9-60463
2Air Silencer Gasket N/A
18-2864GLM
  • 33640
Johnson/Evinrude Outboard
  • 321727
  • 342513
Mallory
  • 9-60413
1Powerhead Base Gasket N/A
18-2866GLM
  • 34290
Johnson/Evinrude Outboard
  • 317914
Mallory
  • 9-60434
2Exhaust Cover Gasket N/A
18-2867GLM
  • 33180
Johnson/Evinrude Outboard
  • 319174
Mallory
  • 9-60438
1Manifold to Crankcase Gasket N/A
18-2873GLM
  • 33530
Johnson/Evinrude Outboard
  • 318335
Mallory
  • 9-60454
2Water Jacket Gasket N/A
18-2876GLM
  • 33280
Johnson/Evinrude Outboard
  • 307133
Mallory
  • 9-60426
OMC Stern Drive
  • 307133
4Bypass Cover Gasket N/A
18-2956GLM
  • 33540
Johnson/Evinrude Outboard
  • 318358
Mallory
  • 9-63828
2Head Gasket N/A
18-7133GLM
  • 82400
Johnson/Evinrude Outboard
  • 305123
  • 321119
Mallory
  • 9-76529
OMC Stern Drive
  • 305123
4O-Ring
18-2001GLM
  • 86030
Johnson/Evinrude Outboard
  • 0330137
  • 310600
  • 313398
  • 317761
  • 321463
  • 321668
Mallory
  • 9-76212
OMC Stern Drive
  • 310600
  • 313398
  • 321463
  • 330137
1Oil Seal N/A
18-2074GLM
  • 86440
Johnson/Evinrude Outboard
  • 318451
  • 322575
  • 339620
1Oil Seal N/A
18-8307GLM
  • 86790
Johnson/Evinrude Outboard
  • 0331103
1Lower Main Seal N/A
18-0999-9Johnson/Evinrude Outboard
  • 323459
1Inner Exhaust Gasket (Priced Per Pkg of 2) N/A

Powerhead Gasket Set
Your Price:
$87.99

Normally Ships in 7-10 Days. Rush proccessing is available on Mallory items: See here.

Powerhead Gasket Set

676-18-4305

Additional Details:

  • For: 2 cyl. models only

Interchanges/Replaces

GLM

  • 39370

Johnson/Evinrude Outboard

  • 393433
  • 437806
  • 439083

Mallory

  • 9-64113

List of Containing Parts

Sierra Item # OE/Competitor # Quantity Description Image Comments
18-0118GLM
  • 33740
Johnson/Evinrude Outboard
  • 325092
Mallory
  • 9-60427
2Carburetor Gasket N/A
18-0120GLM
  • 35200
Johnson/Evinrude Outboard
  • 325211
1Exhaust Plate Gasket N/A
18-0128GLM
  • 35340
Johnson/Evinrude Outboard
  • 326468
  • 351018
Mallory
  • 9-60421
1Powerhead Base Gasket N/A
18-0136GLM
  • 35360
Johnson/Evinrude Outboard
  • 328283
  • 351019
Mallory
  • 9-60422
1Powerhead Base Gasket N/A
18-0157GLM
  • 35480
Johnson/Evinrude Outboard
  • 330698
1Air Box Split Twin Gasket N/A
18-0159Johnson/Evinrude Outboard
  • 330909
1Air Box Split Twin Gasket N/A
18-0182GLM
  • 30610
Johnson/Evinrude Outboard
  • 310058
Mallory
  • 9-60002
Mercury Marine
  • 27-62386
  • 27-62386001
Mercury Race Outboard
  • 27-62386001
1Thermostat Gasket N/A
18-0850GLM
  • 34080
Johnson/Evinrude Outboard
  • 303615
Mallory
  • 9-60436
1Fuel Pump Gasket N/A
18-0851GLM
  • 35420
Johnson/Evinrude Outboard
  • 329826
1Relief Gasket N/A
18-0941GLM
  • 34780
Johnson/Evinrude Outboard
  • 315538
Mallory
  • 9-60451
1Water Jacket Gasket N/A
18-0963GLM
  • 35800
Johnson/Evinrude Outboard
  • 335633
Mallory
  • 9-60440
1Intake Manifold Twin Gasket N/A
18-0983GLM
  • 35180
Johnson/Evinrude Outboard
  • 321497
Mallory
  • 9-60429
1Carburetor to Air Box Twin Gasket N/A
18-3802GLM
  • 34250
Johnson/Evinrude Outboard
  • 320658
  • 327795
  • 335359
Mallory
  • 9-63833
1Head Gasket N/A
NSSJohnson/Evinrude Outboard
  • 320679
1Gasket, Base to CoverNo ImageN/A

Powerhead Gasket Set
Your Price:
$50.99

Normally Ships in 7-10 Days. Rush proccessing is available on Mallory items: See here.

Powerhead Gasket Set

676-18-4307

Interchanges/Replaces

GLM

  • 39420

Johnson/Evinrude Outboard

  • 389206
  • 392567
  • 392615
  • 433941

Mallory

  • 9-64114

List of Containing Parts

Sierra Item # OE/Competitor # Quantity Description Image Comments
18-0106GLM
  • 33690
Johnson/Evinrude Outboard
  • 324323
2Exhaust Manifold Gasket N/A
18-0118GLM
  • 33740
Johnson/Evinrude Outboard
  • 325092
Mallory
  • 9-60427
1Carburetor Gasket N/A
18-0126GLM
  • 35330
Johnson/Evinrude Outboard
  • 326264
1Inner Exhaust Cover Gasket N/A
18-0850GLM
  • 34080
Johnson/Evinrude Outboard
  • 303615
Mallory
  • 9-60436
1Fuel Pump Gasket N/A
18-0971GLM
  • 34340
Johnson/Evinrude Outboard
  • 319661
1Bypass Gasket N/A
18-0981GLM
  • 34390
Johnson/Evinrude Outboard
  • 321479
1Leafplate Gasket N/A
18-2852GLM
  • 33710
Johnson/Evinrude Outboard
  • 330621
Mallory
  • 9-60445
1Powerhead Base Gasket N/A
18-2862GLM
  • 33090
Johnson/Evinrude Outboard
  • 321573
  • 326260
1Leaf Plate Gasket N/A
18-3803GLM
  • 34570
Johnson/Evinrude Outboard
  • 324324
  • 329419
  • 765012
Mallory
  • 9-63830
1Head Gasket N/A
18-3899GLM
  • 33700
Johnson/Evinrude Outboard
  • 327674
1Water Cover Gasket N/A

Powerhead Gasket Set
Your Price:
$183.99

Normally Ships in 7-10 Days. Rush proccessing is available on Mallory items: See here.

Powerhead Gasket Set

676-18-4309

Interchanges/Replaces

GLM

  • 39430

Johnson/Evinrude Outboard

  • 394885
  • 434381

Mallory

  • 9-64115

List of Containing Parts

Sierra Item # OE/Competitor # Quantity Description Image Comments
18-0134GLM
  • 34540
Johnson/Evinrude Outboard
  • 327707
Mallory
  • 9-60428
3Carburetor to Manifold Gasket N/A
18-0148GLM
  • 33610
Johnson/Evinrude Outboard
  • 329718
Mallory
  • 9-60441
1Intake Manifold Gasket N/A
18-0927GLM
  • 34650
Johnson/Evinrude Outboard
  • 393561
1Inner Exhaust Cover Gasket N/A
18-0945GLM
  • 32560
Johnson/Evinrude Outboard
  • 323217
  • 336430
1Outer Exhaust Gasket N/A
18-0979GLM
  • 34380
Johnson/Evinrude Outboard
  • 321183
Mallory
  • 9-60416
1Air Silencer Gasket N/A
18-0991GLM
  • 33660
Johnson/Evinrude Outboard
  • 321907
6Leaf Plate Gasket N/A
18-0995GLM
  • 34470
Johnson/Evinrude Outboard
  • 323222
1Powerhead Base Gasket N/A
18-2544GLM
  • 34370
Johnson/Evinrude Outboard
  • 321028
Mallory
  • 9-60452
2Water Jacket Cover Gasket N/A
18-2546GLM
  • 33600
Johnson/Evinrude Outboard
  • 321184
Mallory
  • 9-60449
2Thermostat Gasket N/A
18-2547GLM
  • 34450
Johnson/Evinrude Outboard
  • 322858
1Water Passage Cover Gasket N/A
18-2550GLM
  • 34460
Johnson/Evinrude Outboard
  • 321026
  • 323214
Mallory
  • 9-60420
1Powerhead Base Gasket N/A
18-2857GLM
  • 33750
Johnson/Evinrude Outboard
  • 319771
  • 386573
Mallory
  • 9-60463
3Air Silencer Gasket
18-2876GLM
  • 33280
Johnson/Evinrude Outboard
  • 307133
Mallory
  • 9-60426
OMC Stern Drive
  • 307133
6Bypass Cover Gasket N/A
18-3801GLM
  • 34240
Johnson/Evinrude Outboard
  • 325647
  • 335361
2Head Gasket N/A
18-7416GLM
  • 81140
Johnson/Evinrude Outboard
  • 329380
1O-Ring N/A
18-7417GLM
  • 81100
Johnson/Evinrude Outboard
  • 329381
1O-Ring N/A

Powerhead Gasket Set
Your Price:
$97.99

Normally Ships in 7-10 Days. Rush proccessing is available on Mallory items: See here.

Powerhead Gasket Set

676-18-4301

Interchanges/Replaces

GLM

  • 39360

Johnson/Evinrude Outboard

  • 388602

Mallory

  • 9-64117

List of Containing Parts

Sierra Item # OE/Competitor # Quantity Description Image Comments
18-0117GLM
  • 34300
Johnson/Evinrude Outboard
  • 317955
Mallory
  • 9-60435
1Exhaust Plate Gasket N/A
18-0134GLM
  • 34540
Johnson/Evinrude Outboard
  • 327707
Mallory
  • 9-60428
2Carburetor to Manifold Gasket N/A
18-0953GLM
  • 34870
Johnson/Evinrude Outboard
  • 317951
1Water Passage Gasket N/A
18-0955GLM
  • 33510
Johnson/Evinrude Outboard
  • 318156
1Exhaust Cover Gasket N/A
18-0957GLM
  • 34880
Johnson/Evinrude Outboard
  • 318373
1Powerhead Base Gasket N/A
18-0991GLM
  • 33660
Johnson/Evinrude Outboard
  • 321907
4Leaf Plate Gasket N/A
18-2857GLM
  • 33750
Johnson/Evinrude Outboard
  • 319771
  • 386573
Mallory
  • 9-60463
2Air Silencer Gasket N/A
18-2864GLM
  • 33640
Johnson/Evinrude Outboard
  • 321727
  • 342513
Mallory
  • 9-60413
1Powerhead Base Gasket N/A
18-2866GLM
  • 34290
Johnson/Evinrude Outboard
  • 317914
Mallory
  • 9-60434
2Exhaust Cover Gasket N/A
18-2867GLM
  • 33180
Johnson/Evinrude Outboard
  • 319174
Mallory
  • 9-60438
1Manifold to Crankcase Gasket N/A
18-2873GLM
  • 33530
Johnson/Evinrude Outboard
  • 318335
Mallory
  • 9-60454
2Water Jacket Gasket N/A
18-2876GLM
  • 33280
Johnson/Evinrude Outboard
  • 307133
Mallory
  • 9-60426
OMC Stern Drive
  • 307133
4Bypass Cover Gasket N/A

S/B Chevy Valve Spring Oiling System
Your Price:
$189.99

S/B Chevy Valve Spring Oiling System

755-8484

Small Block Chevy Valve Spring Oiling System

Valve cover rails are a Keith Eickert exclusive product that has been designed to solve the problem of excessive valve train failure. Valve spring fatigue and failure cause by long duration engine operation at higher engine rpm’s. Valve spring oilers are an industry standard in many forms of professional motorsports. Now this system can easily be installed on nearly all small block chevrolet application to dramatically extend valve train life. Simple 1/16" NPT single female oil inlets per rail provide ease of plumbing. Sold in pairs.

TECH: On engines with a higher average rpm and power band the stock oil flow thru the valve train can be marginal at best. This is a very common cause of premature wear and escalating oil temps. Most conditions on endurance applications such as performance boats or off shore race boats plumbing a separate pressurized spray bar to cool valve springs and rockers that feeds from either a passage in the block or a separate oil supply has proven to be extremely key to long term durability, because the rapid cycling torsional stress on valve springs can easily cause them to heat to over 700F if not bathed in a constant flow of oil that absorbs and carry's away the heat that builds up rapidly, many shaft rocker systems have strategically located oil shaft holes that direct flowing oil to the valve springs and rockers. Most people don't understand that almost 1/2 of an engines total heat comes from the valve train and bearing friction.