Bearings - Mercury

33" Lightning Big Block Chevy Jet - Silver
Your Price:
$2,589.99


454 Chevy 2.25" Jet Header (Fresh Water) 38" Width
Your Price:
$3,030.99


Bearing Mercruiser 31-32575T1
Your Price:
$8.99

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

Bearing Mercruiser 31-32575T1

676-9-75106

Bearing
Replaces: Mercruiser 31-32575T1
For: R/MR/Alpha I, 1983-90 upper houing – upper cap
Mallory Marine has over 80 years of market leadership in the automotive industry and now has an extended range of professional quality marine parts to service every major system on your outboard, inboard and sterndrive. All Mallory Marine parts are covered by a two year limited warranty.


Bearing Mercury 31-30895T
Your Price:
$14.99

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

Bearing Mercury 31-30895T

676-9-75111

Bearing
Replaces: Mercury 31-30895T
Fits: Inside fwd gear, 40 V-6
Mallory Marine has over 80 years of market leadership in the automotive industry and now has an extended range of professional quality marine parts to service every major system on your outboard, inboard and sterndrive. All Mallory Marine parts are covered by a two year limited warranty.


Bearing Mercury 31-30956T
Your Price:
$10.99

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

Bearing Mercury 31-30956T

676-9-75112

Bearing
Replaces: Mercury 31-30956T
Fits: Prop shaft bearing carrier OB 40hp & up
Mallory Marine has over 80 years of market leadership in the automotive industry and now has an extended range of professional quality marine parts to service every major system on your outboard, inboard and sterndrive. All Mallory Marine parts are covered by a two year limited warranty.


Bearing Mercury 31-33138A1
Your Price:
$41.99

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

Bearing Mercury 31-33138A1

676-9-75125

Bearing
Replaces: Mercury 31-33138A1
For: Merc 650/800/850 drive shaft
Mallory Marine has over 80 years of market leadership in the automotive industry and now has an extended range of professional quality marine parts to service every major system on your outboard, inboard and sterndrive. All Mallory Marine parts are covered by a two year limited warranty.


Bearing Mercury 31-36387A1
Your Price:
$36.99

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

Bearing Mercury 31-36387A1

676-9-75107

Bearing
Replaces: Mercury 31-36387A1
For: V-6 drive shaft
Mallory Marine has over 80 years of market leadership in the automotive industry and now has an extended range of professional quality marine parts to service every major system on your outboard, inboard and sterndrive. All Mallory Marine parts are covered by a two year limited warranty.


Bearing Mercury 31-38356A1
Your Price:
$43.99

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

Bearing Mercury 31-38356A1

676-9-75108

Bearing
Replaces: Mercury 31-38356A1
For: 30/35/40/50/60 fwd gear
Mallory Marine has over 80 years of market leadership in the automotive industry and now has an extended range of professional quality marine parts to service every major system on your outboard, inboard and sterndrive. All Mallory Marine parts are covered by a two year limited warranty.


Bearing Mercury 31-78172A1
Your Price:
$66.99

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

Bearing Mercury 31-78172A1

676-9-75110

Bearing
Replaces: Mercury 31-78172A1
For: V-6 fwd gear
Mallory Marine has over 80 years of market leadership in the automotive industry and now has an extended range of professional quality marine parts to service every major system on your outboard, inboard and sterndrive. All Mallory Marine parts are covered by a two year limited warranty.


Bearing Mercury 31-828437A2
Your Price:
$117.99

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

Bearing Mercury 31-828437A2

676-9-75115

Bearing
Replaces: Mercury 31-828437A2
Fits: Forward Gear
Mallory Marine has over 80 years of market leadership in the automotive industry and now has an extended range of professional quality marine parts to service every major system on your outboard, inboard and sterndrive. All Mallory Marine parts are covered by a two year limited warranty.


Drive Bearing Kit Mercruiser 31-35988A12
Your Price:
$114.99

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

Drive Bearing Kit Mercruiser 31-35988A12

676-9-75123

Drive Bearing Kit
Replaces: Mercruiser 31-35988A12
Fits: R/MR/Alpha & Gen II Drives
Mallory Marine has over 80 years of market leadership in the automotive industry and now has an extended range of professional quality marine parts to service every major system on your outboard, inboard and sterndrive. All Mallory Marine parts are covered by a two year limited warranty.


Forward Gear Bearing Mercury 31-828439A2
Your Price:
$127.99

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

Forward Gear Bearing Mercury 31-828439A2

676-9-75119

Forward Gear Bearing
Replaces: Mercury 31-828439A2
Fits: 200, 225, 250 3.0 s/n G437999 & below
Mallory Marine has over 80 years of market leadership in the automotive industry and now has an extended range of professional quality marine parts to service every major system on your outboard, inboard and sterndrive. All Mallory Marine parts are covered by a two year limited warranty.


BBC 36" Wide Reduced Water Headers
Starting From:
$2,275.99
This Part has options, please click the button below to order.

Lightning Big Block Chevy 36" Wide Reduced Water Headers

310-40 + Option(s)

Reduced Water Distribution Header - BBC 36" Wide Reduced Water Headers

Reduced water helps reduce reversion by reducingexhaust stream water. Only enough water enters the exhaust tokeep hoses, etc. cool. The remainder gets dumped overboard via a3/4" fitting at the end of header. This is the only option that will helpthe silent choice system. Oil filter requires relocation.

LIGHTNING PERFORMANCE
When comparing performance exhaust systems it's good to understand the different systems on the market today and the performance demands of yourengine. Understanding how a header works will help you decide on which exhaust system is best suited for your application.

Headers have two basic functions. First is to simply relieve back pressure. For example, when looking at a manifold you see a 4" diameter exhaust hose, but theactual exhaust gas opening is about 2-1/2" diameter. Most performance manifolds and some header manufacturers use a 4" exhaust hose and 3" or 3-1/2" OD exhaustgas tube. All of these headers use a 4" OD exhaust gas tube and a 5" water jacket tube until the water gets introduced into the exhaust gas stream, then it getsreduced from 5" to its 4" exhaust hose diameter. At no time does the exhaust gases see a diameter smaller than 4" OD. When looking at these exhaust gas openingsconsider their area not their diameter. For example, a 4" OD opening has an area of approximately 12.56 sq. in. A 3-1/2" opening has an area of approximately 9.62 sq. in.That is 25% smaller! A 3" opening is approximately 7.06 sq. in. and a 2-1/2" opening is approximately 4.90 sq. in. which is 60% smaller.

LIGHTNING HORSE POWER COMPARISON
Performance figures on headers vary considerably. As a rule, the higher horsepower engines benefit more than the lower horsepower engines. For example, the 330hp Mercury engine will gain approximately 50 to 75 rpm, where as the 365 hp Mercury engine will gain approximately 300 to 400 rpm (45 hp). Blown engines gain upto 800 rpm (80 hp). Of course this is comparing these headers against stock Mercury center rise manifolds.

LIGHTNING CONSTRUCTION
Our Magnum header starts with Mandrel bent 316L stainless steel interior tubes. The exterior tubes are Mandrel bent heavy wall steel tube (.074). The tubes arethen mechanically etched by sand blasting and then assembled. Finally, a corrosion resistant silicone ceramic coating is applied to the interior of the header while theexterior receives a powder coat finish.

ALL THIS PLUS THE BEST 2-YEAR WARRANTY IN THE INDUSTRY

Through continuing research Lightning Mfg. has developed a Dual Porcelain Coating that resists the harshest of salt water environments. Now as an option theyare able to apply the same high tech coating to a 316L stainless steel lined header once thought to be the cracking alloy and render it crack resistant.


Big Block Chevy All Stainless Steel Headers with Stainless Dry Tailpipe 36" Wide
Starting From:
$4,899.99
This Part has options, please click the button below to order.

Lightning Big Block Chevy All Stainless Steel Headers with Dry Tailpipe 36" Wide

310-404 + Option(s)

Big Block Chevy All Stainless Steel System with Stainless Dry Tailpipe 36" Wide

For those of you searching for a superb value in a long tubeStainless Steel header, this is it! The Magnum Stainless Steel header uses Mandrelbent 316L stainless steel on the interior and exterior tubes. The header is tig welded with a custom alloy welding rod to helpprevent cracking. After assembly the entire header is stress relieved, annealed,and heat-treated to maximize its corrosive resistance.  The standard finish is satin and polishing is available as an option.The system is sold with gaskets, bolts, and hardware.
EFI applications require ECU reprogramming.

LIGHTNING PERFORMANCE
When comparing performance exhaust systems it's good to understand the different systems on the market today and the performance demands of yourengine. Understanding how a header works will help you decide on which exhaust system is best suited for your application.

Headers have two basic functions. First is to simply relieve back pressure. For example, when looking at a manifold you see a 4" diameter exhaust hose, but theactual exhaust gas opening is about 2-1/2" diameter. Most performance manifolds and some header manufacturers use a 4" exhaust hose and 3" or 3-1/2" OD exhaustgas tube. All of these headers use a 4" OD exhaust gas tube and a 5" water jacket tube until the water gets introduced into the exhaust gas stream, then it getsreduced from 5" to its 4" exhaust hose diameter. At no time does the exhaust gases see a diameter smaller than 4" OD. When looking at these exhaust gas openingsconsider their area not their diameter. For example, a 4" OD opening has an area of approximately 12.56 sq. in. A 3-1/2" opening has an area of approximately 9.62 sq. in.That is 25% smaller! A 3" opening is approximately 7.06 sq. in. and a 2-1/2" opening is approximately 4.90 sq. in. which is 60% smaller.

LIGHTNING HORSE POWER COMPARISON
Performance figures on headers vary considerably. As a rule, the higher horsepower engines benefit more than the lower horsepower engines. For example, the 330hp Mercury engine will gain approximately 50 to 75 rpm, where as the 365 hp Mercury engine will gain approximately 300 to 400 rpm (45 hp). Blown engines gain upto 800 rpm (80 hp). Of course this is comparing these headers against stock Mercury center rise manifolds.

ALL THIS PLUS THE BEST 2-YEAR WARRANTY IN THE INDUSTRY


Lightning Big Block Chevy Big Tube Silver
Your Price:
$3,099.99


Standard Big Block Chevy Freshwater Merc Headers 36" Wide
Starting From:
$2,319.99
This Part has options, please click the button below to order.

Lightning Big Block Chevy Freshwater Merc Headers 36" Wide

310-40 + Option(s)

Standard Big Block Chevy Freshwater Merc Kit 36" Wide - STOCK Measurements

THE ULTIMATE "FRESH WATER" EXHAUST SYSTEM

Finally an affordable alternative to all stainless steel water jacketed headers. For the thousands of pleasure boaters "NOT" affected by the corrosion problems associated with Salt Water there is at last the availability of a true tubular header system for the Fresh Water boater. These headers are designed to be a replacement for Mercury manifolds. However, they terminate approximately 8" aft of stock manifolds and are projected to meet the exhaust tips providing they are in the stock location. Low Port Headers are also available for under the swim step applications. Standard width headers will have about 1/2" clearance between header and tall style Moroso valve cover. Headers come complete with bolts, gaskets, water fittings, pet cocks, etc. (less 4" hose and 4" hose clamps). Factory oil filter requires relocation.

THE LIGHTNING CONSTRUCTION DIFFERENCE IS WHAT COUNTS !
Our Magnum header starts with Mandrel bent 316L stainless steel interior tubes. The exterior tubes are Mandrel bent heavy wall steel tube (.074). The tubes are then mechanically etched by sand blasting and then assembled. Finally,a corrosion resistant silicone ceramic coating is applied to the interior of the header while the exterior receives a powder coat finish.

ALL THIS PLUS THE BEST 2-YEAR WARRANTY IN THE INDUSTRY

Through continuing research Lightning Mfg. has developed a Dual Porcelain Coating that resists corrosive water environments. Now able to apply the same high tech coating to the fresh water series of steel outer lined thus aiding in the prevention cracking and deterioration.


Lightning Big Block Chevy Jet All Stainless Steel Headers 36" Wide
Starting From:
$4,089.99
This Part has options, please click the button below to order.

Standard Jacketed Header - Big Block Chevy Jet Drive 36" Wide
Starting From:
$2,175.99
This Part has options, please click the button below to order.

Lightning Big Block Chevy Jet Drive 36" Wide Standard Jacketed Header

310-40 + Option(s)

Standard Jacketed Header - Big Block Chevy Jet Drive 36" Wide

These headers are designed to be a replacement for Jet manifolds. However, they terminate approximately 8" aft of stock manifolds and are projected to meet the exhaust tips providing they are in the stock location. Headers will have about 1/2" clearance between header and tall Moroso valve covers. Headers come complete with bolts, gaskets, water fittings, pet cocks, etc. (less 4" hose and 4" hose clamps). Factory oil filter requires relocation.

LIGHTNING PERFORMANCE
When comparing performance exhaust systems it's good to understand the different systems on the market today and the performance demands of your engine. Understanding how a header works will help you decide on which exhaust system is best suited for your application.

Headers have two basic functions. First is to simply relieve back pressure. For example, when looking at a manifold you see a 4" diameter exhaust hose, but the actual exhaust gas opening is about 2-1/2" diameter. Most performance manifolds and some header manufacturers use a 4" exhaust hose and 3" or 3-1/2" OD exhaust gas tube. All of these headers use a 4" OD exhaust gas tube and a 5" water jacket tube until the water gets introduced into the exhaust gas stream, then it gets reduced from 5" to its 4" exhaust hose diameter. At no time does the exhaust gases see a diameter smaller than 4" OD. When looking at these exhaust gas openings consider their area not their diameter. For example, a 4" OD opening has an area of approximately 12.56 sq. in. A 3-1/2" opening has an area of approximately 9.62 sq. in.That is 25% smaller! A 3" opening is approximately 7.06 sq. in. and a 2-1/2" opening is approximately 4.90 sq. in. which is 60% smaller.

LIGHTNING HORSE POWER COMPARISON
Performance figures on headers vary considerably. As a rule, the higher horsepower engines benefit more than the lower horsepower engines. For example, the 330 hp Mercury engine will gain approximately 50 to 75 rpm, where as the 365 hp Mercury engine will gain approximately 300 to 400 rpm (45 hp). Blown engines gain up to 800 rpm (80 hp). Of course this is comparing these headers against stock Mercury center rise manifolds.

LIGHTNING CONSTRUCTION
Our Magnum header starts with Mandrel bent 316L stainless steel interior tubes. The exterior tubes are Mandrel bent heavy wall steel tube (.074). The tubes are then mechanically etched by sand blasting and then assembled. Finally, a corrosion resistant silicone ceramic coating is applied to the interior of the header while the exterior receives a powder coat finish.

ALL THIS PLUS THE BEST 2-YEAR WARRANTY IN THE INDUSTRY

Through continuing research Lightning Mfg. has developed a Dual Porcelain Coating that resists the harshest of salt water environments. Now as an option they are able to apply the same high tech coating to a 316L stainless steel lined header once thought to be the cracking alloy and render it crack resistant.


Lightning Big Block Chevy Low Port
Starting From:
$4,039.99
This Part has options, please click the button below to order.

Lightning Big Block Chevy Low Port

310-40 + Option(s)

Lightning Big Block Chevy Low Port


Below Swim Platform Low Port Exit Jacketed Headers - 454/502 Chevy
Starting From:
$2,560.99
This Part has options, please click the button below to order.

Lightning Big Block Chevy Low Port Exit Jacketed Headers 36" Wide

310-40 + Option(s)

Below Swim Platform Low Port Exit Jacketed System - 454/502 Chevy Low Port Headers 36" Wide

These headers are designed to be a replacement for Mercury, OMC or jet manifolds whenthe exhaust ports are mounted low in the boat. For example, under the swim step or whenelbows are used with the stock manifolds. Headers will have about 1/2" clearance between headerand tall Moroso valve covers. Headers come complete with bolts, gaskets, water fittings, petcocks, 4" elbows for bottom, etc. (less 4" hose and 4" hose clamps). Factory oil filterrequires relocation.

LIGHTNING PERFORMANCE
When comparing performance exhaust systems it's good to understand the different systems on the market today and the performance demands of yourengine. Understanding how a header works will help you decide on which exhaust system is best suited for your application.

Headers have two basic functions. First is to simply relieve back pressure. For example, when looking at a manifold you see a 4" diameter exhaust hose, but theactual exhaust gas opening is about 2-1/2" diameter. Most performance manifolds and some header manufacturers use a 4" exhaust hose and 3" or 3-1/2" OD exhaustgas tube. All of these headers use a 4" OD exhaust gas tube and a 5" water jacket tube until the water gets introduced into the exhaust gas stream, then it getsreduced from 5" to its 4" exhaust hose diameter. At no time does the exhaust gases see a diameter smaller than 4" OD. When looking at these exhaust gas openingsconsider their area not their diameter. For example, a 4" OD opening has an area of approximately 12.56 sq. in. A 3-1/2" opening has an area of approximately 9.62 sq. in.That is 25% smaller! A 3" opening is approximately 7.06 sq. in. and a 2-1/2" opening is approximately 4.90 sq. in. which is 60% smaller.

LIGHTNING HORSE POWER COMPARISON
Performance figures on headers vary considerably. As a rule, the higher horsepower engines benefit more than the lower horsepower engines. For example, the 330hp Mercury engine will gain approximately 50 to 75 rpm, where as the 365 hp Mercury engine will gain approximately 300 to 400 rpm (45 hp). Blown engines gain upto 800 rpm (80 hp). Of course this is comparing these headers against stock Mercury center rise manifolds.

LIGHTNING CONSTRUCTION
Our Magnum header starts with Mandrel bent 316L stainless steel interior tubes. The exterior tubes are Mandrel bent heavy wall steel tube (.074). The tubes arethen mechanically etched by sand blasting and then assembled. Finally, a corrosion resistant silicone ceramic coating is applied to the interior of the header while theexterior receives a powder coat finish.

ALL THIS PLUS THE BEST 2-YEAR WARRANTY IN THE INDUSTRY

Through continuing research Lightning Mfg. has developed a Dual Porcelain Coating that resists the harshest of salt water environments. Now as an option theyare able to apply the same high tech coating to a 316L stainless steel lined header once thought to be the cracking alloy and render it crack resistant.