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Marine Engine Components

When it comes to rebuilding, repairing or remanufacturing your MerCruiser, OMC, Volvo marine engine, EngineQuest has just the items to get the engine back into the boat and the boat back on the water.

Updated as of 06/27/2017

Valve Covers / Rocker Covers

PART #ENGINE MFGCIDLITERYEARSNOTESMerCruiser / Quick Silver cross reference
VC262Chevrolet2624.31985-93METAL14252, 814504
VC350MChevrolet3055.01970-85METAL Outer bolt down holes 1 push-in hole & 1 turn-in cap hole523331A1, 58211, 79961, 79961T1
VC350MChevrolet3505.71970-85METAL Outer bolt down holes 1 push-in hole & 1 turn-in cap hole523331A1, 58211, 79961, 79961T1
VC351LChevrolet3055.01986- 96METAL Center bolt down holes 1 push-in & 1 screw-in 1 push-in 
VC351LChevrolet3505.71986- 96METAL Center bolt down holes 1 push-in & 1 screw-in 1 push-in 
VC352LChevrolet3055.01986- 96METAL Center bolt down holes 1 push-in & 1 screw-in809995
VC352LChevrolet3505.71986- 96METAL
Center bolt down holes
1 push-in & 1 screw-in
809995
VC454Chevrolet4277.01969-74METAL17671
VC454Chevrolet4547.41969-90METAL17671

Caps and Grommets

PART #ENGINE MFGCIDLITERYEARSNOTESMerCruiser / Quick Silver cross reference
OC350NChevroletUniversalOil Filler Cap Universal Screw-In36-18710002 38-18710
PCV350ChevroletUniversalRocker Cover / Breather Grommet Universal23-8M0071559

Harmonic Balancer

PART #ENGINE MFGCIDLITERYEARSNOTESMerCruiser / Quick Silver cross reference
BA350NChevrolet2624.31979-19956-3/4” OD75420
BA349NChevrolet2624.31996-19988” OD8524946001 852946 863397
BA350NChevrolet3055.01979-19956-3/4” OD75420
BA349NChevrolet3055.01996-19988” OD8524946001 852946 863397
BA350NChevrolet3505.71979-19956-3/4” OD75420
BA349NChevrolet3505.71996-19988” OD8524946001 852946 863397
BA460AFord4607.51968-1997

Timing Covers

PART #ENGINE MFGCIDLITERYEARSNOTESMerCruiser / Quick Silver cross reference
SP181NChevrolet1532.5ALL39332A1
SP181NChevrolet1813.01963-8939332A1
TC181NChevrolet1813.01963-895934141A1, 49951
SP181NChevrolet1813.01963-89Side Panel / Pushrod Cover39332A1
TC350MChevrolet2624.31986-95METAL for use with 6-3/4" O.D. Balancer non-balance shaft engine14249A2 60660A1
TC262PChevrolet2624.31996-03PLASTIC
Non-balance shaft engine
Includes plug kit to block crank position sensor hole in cover
809893, 863396
TC351AFord3025.01970-74ALUMINUM56103
TC350MChevrolet3055.01986-95METAL for use with 6-3/4" O.D. Balancer14249A2, 60660A1
TCC349Chevrolet3055.01986-95METAL for use with 8" O.D. Balancer order TM350 marker separately
TC350PChevrolet3055.01996-02PLASTIC
Includes plug kit to block crank position sensor hole in cover
835005
TC318NChrysler3185.21975-85Aluminum LM318 / LM3603619878 4142252
TC350PChevrolet3505.71996-03PLASTIC
Includes plug kit to block crank position sensor hole in cover
835005
TC350MChevrolet3505.71986-95METAL for use with 6-3/4" O.D. Balancer14249A2, 60660A1
TCC349Chevrolet3505.71986-95METAL for use with 8" O.D. Balancer order TM350 marker separately
TC351AFord351W5.71973-77ALUMINUM56103
TC318NChrysler3605.91975-85Aluminum LM318 / LM3603619878 4142252
TCC454Chevrolet4277.01969-74METAL66215
TCC454Chevrolet4547.41968-90METAL66215
TC460NFord4607.51968-1997Aluminum

Push Rod Cover / Side Plate

PART #ENGINE MFGCIDLITERYEARSNOTESMerCruiser / Quick Silver cross reference
SP181N1532.5ALL59341A1
SP181N1813.0ALL59341A1

Oil Filter Adapters

PART #ENGINE MFGCIDLITERYEARSNOTESMerCruiser / Quick Silver cross reference
OFA454Chevrolet1813.0L4 – also known as connector22-805632
OFA262Chevrolet2624.31986-93V6 - also known as connector11972
OFA305Chevrolet3055.01986-02V8 - also known as connector71920
OFA305Chevrolet3505.71986-02V8 - also known as connector71920
OFA454Chevrolet4547.41965 & NewerV8 - also known as connector22-805632
OFA454Chevrolet5028.21996 & NewerV8 - also known as connector22-805632
OFA302Ford3025.01970-90V8 - also known as connector22-56876
OFA460Ford4607.51968-1997V8 - also known as connector

Oil Pan Rails

PART #ENGINE MFGCIDLITERYEARSNOTESMerCruiser / Quick Silver cross reference
OPR262Chevrolet2624.31986-93For use on 1 piece rear seal engine and with oil pan part # OP262M14245 (right side) 14246 (left side)
OPR350Chevrolet3055.01985-02For use on 1 piece rear seal engine14257 (port side) 14256 (starboard side)
OPR350Chevrolet3505.71985-02For use on 1 piece rear seal engine14257 (port side) 14256 (starboard side)

Oil Pan Bolts

PART #ENGINE MFGCIDLITERYEARSNOTESMerCruiser / Quick Silver cross reference
OPB305Chevrolet2624.31986-93¼ - 2010-14070
OPB305Chevrolet3055.01985-02¼ - 2010-14070
OPB305Chevrolet3505.71985-02¼ - 2010-14070

Oil Pans

PART #ENGINE MFGCIDLITERYEARSNOTESMerCruiser / Quick Silver cross reference
OP262MChevrolet2624.31986-93For use on 1 piece rear seal engine14244
OP350BChevrolet3055.01970-79LEFT DIP 6 quart. For use with bolt-in windage tray / baffle87758A1, 47549 
OP350MChevrolet3055.01986-96For use on 1 piece rear seal engine 5 quart. For use with bolt-in windage tray / baffle13840A1, 805930A1
OP350NChevrolet3055.01989-Up12MM Drain Plug *For use with bolt-in windage tray / baffle808588, 809910, 88901T
OP350BChevrolet3505.71970-79LEFT DIP 6 quart. For use with bolt-in windage tray / baffle87758A1, 47549 
OP350MChevrolet3505.71986-965 quart. For use with bolt-in windage tray / baffle3840A1, 805930A1
OP350NChevrolet3505.71989-Up12MM Drain Plug *For use with bolt-in windage tray / baffle808588, 889501T, 809910
OP350PChevrolet3505.71989-9614MM Drain Plug with baffle welded in pan *808588*
OP350BChevrolet4006.61970-79LEFT DIP 6 quart. For use with bolt-in windage tray / baffle87758A1, 47549 
OP454Chevrolet4277.01969-742 rear seal engine application47552A5, 47552
OP454Chevrolet4547.41965-902 rear seal engine application47552A5, 47552

Windage Tray / Oil Baffle

PART #ENGINE MFGCIDLITERYEARSNOTESMerCruiser / Quick Silver cross reference
WTC350NChevrolet3055.01979-97Windage tray / oil baffle98602 986021 
WTC350NChevrolet3505.71979-97Windage tray / oil baffle98602 986021 
SBM350Chevrolet2624.31986-93Studded main bolt / windage tray mounting bolt16-54790
SBM350Chevrolet3055.01979-97Studded main bolt / windage tray mounting bolt16-54790
SBM350Chevrolet3505.71979-97Studded main bolt / windage tray mounting bolt16-54790

Head Bolts

PART #ENGINE MFGCIDLITERYEARSNOTESMerCruiser / Quick Silver cross reference
HB262NChevrolet2624.31985-19975/8” hex head bolt 
HB263NChevrolet2624.31997-2006½” hex head10-11966, 10-119671, 10-11968
HB302NFORD3025.01970-2001TORQUE TO YIELD10-56112 10-56113
HB350PChevrolet3055.0 ½” hex head10-11966, 10-119671, 10-11968
HB350PChevrolet3505.7 ½” hex head10-11966, 10-119671, 10-11968
HB350NChevrolet3055.0 5/8” hex head bolt 
HB350NChevrolet3505.7 5/8” hex head bolt 
HB454NChevrolet4277.01969-74BIG BLOCK10-8M0000463, 10-8M0000482
HB454NChevrolet4547.41965-90BIG BLOCK10-8M0000463, 10-8M0000482
HB496NChevrolet4968.110-881642A01 - 10-881625 10-881642A01 - 10-881624 10-881642A01 - 10-881642
HB454NChevrolet5028.21990-9810-8M0000463, 10-8M0000482
HB370NFord4607.51968-1997

Cylinder Heads

PART #ENGINE MFGCIDLITERYEARSNOTESMerCruiser / Quick Silver cross reference
CH305BChevrolet3055.01996 - UpReplaces casting number: 12552520, 12557113, 12558059 Intake runner 170CC Combustion Chamber 58CC 938-802556*
CH305BAChevrolet3055.01996 - UpReplaces casting number:
12552520, 12557113, 12558059 Intake runner 170CC
Combustion Chamber 58CC
ASSEMBLED
 938-802556
CH318BAChrysler3185.21975-85Requires the changeover to 1992 318/360 Rocker Arms, & pushrods
172cc Intake Runner - 
62cc Combustion Chamber  
ASSEMBLED
3745351 *
CH350AChevrolet3505.71969-1986Universal Intake runner 178CC Combustion Chamber 76CC With Heat Riser / 69-86 Intake manifold bolt pattern 7 bolt hole exhaust mounting Perimeter valve cover holes938-7499*
CH350AAChevrolet3505.71969-1986Universal
Intake runner 178CC
Combustion Chamber 76CC
With Heat Riser /
69-86 Intake manifold bolt pattern
7 bolt hole exhaust mounting
Perimeter valve cover holes
ASSEMBLED
938-7499*
CH350HChevrolet3505.71969-1986Replaces casting number: 083, 191, 193, 217, 810, With Heat Riser / 69-86 Intake manifold bolt pattern Perimeter valve cover holes Recommended to be replaced in pairs.
CH350HAChevrolet3505.71969-1986Replaces casting number:
083, 191, 193, 217, 810,
With Heat Riser /
69-86 Intake manifold bolt pattern
Perimeter valve cover holes
Recommended to be replaced in pairs.
ASSEMBLED
 
CH350GChevrolet3505.71987-1995Replaces casting number: 083, 191, 193, 217, 810, With Heat Riser / 87-95 Intake manifold bolt pattern Center bolt down valve cover holes Recommended to be replaced in pairs.938-883490 1
CH350GAChevrolet3505.71987-1995Replaces casting number:
083, 191, 193, 217, 810,
With Heat Riser /
87-95 Intake manifold bolt pattern
Center bolt down valve cover holes
Recommended to be replaced in pairs.
ASSEMBLED
938-883490 1
CH350CChevrolet3505.71996-2006Replaces casting number 12558062, 10239906, Intake runner 170CC Combustion Chamber 64CC 938-883297, 938-803860T
CH350CAChevrolet3505.71996-2006Replaces casting number 12558062, 10239906,
Intake runner 170CC
Combustion Chamber 64CC
ASSEMBLED
938-883297 938-803860T
CH454CChevrolet4547.41996-2000 UniversalReplaces casting number 12560241, 10141279
246cc Intake Runner - 
100cc Combustion Chamber /
Vortec Chamber (.370/.3716 valve id)
Direct replacement for 1996- 2000 / When installing on 1996 and earlier models, must use Bolt Down Rocker Arms and Head Gasket by Felpro # 1017 or equivalent 
938-883492R1
CH454CAChevrolet4547.41996-2000Replaces casting number 12560241, 10141279
246cc Intake Runner - 
100cc Combustion Chamber /
Vortec Chamber (.370/.3716 valve id)
ASSEMBLED 
938-883492R1
CH502AChevrolet5028.2MARINECAST IRON Replaces casting number 14097088 Intake runner 299CC Combustion Chamber 118CC938-5924, 938-814512

Block Off Plate Gasket Fuel Pump

PART #ENGINE MFGCIDLITERYEARSNOTESMerCruiser / Quick Silver cross reference
GOP076Universal3055.02 hole mounting
GOP087Chevrolet3505.74 hole mounting

Block Off Plates with Gaskets Fuel Pump

PART #ENGINE MFGCIDLITERYEARSNOTESMerCruiser / Quick Silver cross reference
BOP076Universal3055.02 hole mounting807695
BOP087Chevrolet3505.74 hole mounting809695T

Roller Lifter Guides

PART #ENGINE MFGCIDLITERYEARSNOTESMerCruiser / Quick Silver cross reference
RLG350Chevrolet3505.71986 & NewerAlso known as clips17341T
RLG454Chevrolet4547.41996 & NewerAlso known as clips845754, 850474

Roller Lifter Retainer

PART #ENGINE MFGCIDLITERYEARSNOTESMerCruiser / Quick Silver cross reference
RLR350NChevrolet3055.01986-1997Also known as Spider 811662
RLR350NChevrolet3505.71986-1997Also known as Spider 811662
RLR350KITChevrolet3055.01986-1997Retainer, 3 Mounting Bolts, 8 Clips 811662, 17341T
RLR350KITChevrolet3505.71986-1997Retainer, 3 Mounting Bolts, 8 Clips 811662, 17341T
RLRDLXAChevrolet3055.01986-1990Retainer, 3 Mounting Bolts, 8 Clips, Cam Thrust plate (4.23” T2T) Cam Plate mounting bolts (2)
RLRDLXAChevrolet3505.71986-1990Retainer, 3 Mounting Bolts, 8 Clips, Cam Thrust plate (4.23” T2T) Cam Plate mounting bolts (2)
RLRDLXBChevrolet3055.01991- 2002Retainer, 3 Mounting Bolts, 8 Clips, Cam Thrust plate (3.90” T2T) Cam Plate mounting bolts (2)
RLRDLXBChevrolet3505.71991-2002Retainer, 3 Mounting Bolts, 8 Clips, Cam Thrust plate (3.90” T2T) Cam Plate mounting bolts (2)

Intake Manifold

PART #ENGINE MFGCIDLITERYEARSNOTESMerCruiser / Quick Silver cross reference
IN350MBChevrolet3055.01987-1995
  • 4 Barrel Universal Carburetor mounting
  • Electric Choke
  • 15 degree carb flange
  • All required mounting and accessories holes are tapped
  • Superior runner finish for increased air flow
  • CNC machined for exact fit and bolt hole location
  • Manufactured of the highest grade of cast iron to resist salt water corrosion that aluminum intakes experience & Corrosion caused by natural gas and other dry fuels

IN350MAChevrolet3055.01996-2002
  • 4 Barrel Universal Carburetor mounting
  • Electric Choke
  • 15 degree carb flange
  • All required mounting and accessories holes are tapped
  • Superior runner finish for increased air flow
  • CNC machined for exact fit and bolt hole location
  • Manufactured of the highest grade of cast iron to resist salt water corrosion that aluminum intakes experience & Corrosion caused by natural gas and other dry fuels

17618T
IN350MBChevrolet3505.71987-1995
  • 4 Barrel Universal Carburetor mounting
  • Electric Choke
  • 15 degree carb flange
  • All required mounting and accessories holes are tapped
  • Superior runner finish for increased air flow
  • CNC machined for exact fit and bolt hole location
  • Manufactured of the highest grade of cast iron to resist salt water corrosion that aluminum intakes experience & Corrosion caused by natural gas and other dry fuels

 
IN350MAChevrolet3505.71996-2002
  • 4 Barrel Universal Carburetor mounting
  • Electric Choke
  • 15 degree carb flange
  • All required mounting and accessories holes are tapped
  • Superior runner finish for increased air flow
  • CNC machined for exact fit and bolt hole location
  • Manufactured of the highest grade of cast iron to resist salt water corrosion that aluminum intakes experience & Corrosion caused by natural gas and other dry fuels

17618T

Engine Blocks

PART #ENGINE MFGCIDLITERYEARSNOTESMerCruiser / Quick Silver cross reference
EN-C262BAChevrolet2624.31985 - 19862 piece rear seal Replaces casting 14071177
EN-C262BBChevrolet2624.319861 piece rear seal Replaces casting 14088553
EN-C262BCChevrolet2624.31986-1992Bare Block V6 rebuildable core 1 piece rear seal application Roller Cam, with mechanical fuel pump mount and pushrod hole. Non-Balance Shaft Replaces casting numbers 10105867, 10172756, 14099073, 14093683 & 10066011 – see retainer notes14149R5 841-9956, 841-9690 
EN-C262BFChevrolet2624.31991-UpBare Block V6 rebuildable core 1 piece rear seal application Roller Cam, Balance Shaft type 6 bolt (threaded) timing cover mounting holes – total of 8 holes on block Block casting # 14099090
EN-C262BGChevrolet2624.32003-08Bare Block V6 rebuildable core 1 piece rear seal application Balance Shaft type 8 timing cover holes All Metric mounting bolt holes Block casting # 14099090M
EN-C262BHChevrolet2624.32003 -2014Bare Block V6 rebuildable core 1 piece rear seal application Block casting number 12600234
EN-C262BDChevrolet2624.31992 - 2004Bare Block V6 rebuildable core 1 piece rear seal application 10 hole timing cover Block casting number 10227196
EN-C262BEChevrolet2624.31992 – 2004Bare Block V6 rebuildable core 1 piece rear seal application 10 hole timing cover Block casting number 10235359
EN-C305BBChevrolet3055.01985-95Bare Block V8 – rebuildable core
2 bolt mains, roller cam block
Roller lifter retainer holes drilled and tapped
Roller cam retainer plates holes drilled and tapped
Block casting # 14093627
EN-C305BCChevrolet3055.01996-00Bare Block V8 – rebuildable core
2 bolt mains, roller cam block
Roller lifter retainer holes drilled and tapped
Roller cam retainer plates holes drilled and tapped
Block casting # 10243878
EN-C350BEChevrolet3505.71986-UPBare Block V8– rebuildable core
2 bolt main, roller cam block
Drilled for mechanical fuel pump
Roller lifter retainer holes drilled and tapped
Roller cam retainer plates holes drilled and tapped
10 bolt timing cover mounting holes
841-9717
EN-C454BA-2Chevrolet4547.41970-91Bare Block V8– rebuildable core 2 bolt main Block casting numbers 361959, 14015445
EN-C454BA-4Chevrolet4547.41970-91Bare Block V8– rebuildable core 4 bolt main Block casting numbers 361959, 14015445

What Makes an EQ Cylinder Head better than the rest?

  • Highest grade cast iron material used in manufacturing
  • Thicker decks for greater strength
  • Superior port finish for increased flow
  • Improved flow design to resist cracking
  • Redesigned water flow for greater thermal conductivity
  • Hardened exhaust seats
  • CNC machined guides and seats
  • 3 angle valve finish
  • Parts and labor warranty *
  • Assembled heads use OE quality all new stainless steel valve, springs, retainers, keepers and viton seals.
  • 25 point quality check on every head
We have complied our information and listings to the best of our ability.

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