GM 4.3 Marine Engines - MW
Express
Toronto, ON
Vancouver, BC
NJ, Warehouse
FL, Warehouse
"Express" items are automated and typically shipped out the next available business day and delivered within 4 days.
In Stock
999 available
$3,627.99
Back to: Engines
GM 4.3 Marine Engines
ATK's GM 4.3L marine engines deliver reliable replacement power for Mercruiser, OMC, Volvo, Indmar, and Crusader inboards and sterndrives. Each engine undergoes over 150 remanufacturing processes, including magnafluxing blocks and heads for cracks, precision-grinding camshafts, and line-honing main saddles to OE specifications. Crankshafts are stress-relieved and micro-polished, while pistons and rod assemblies are balanced to minimize vibration. Available in 205HP to 230HP configurations with standard rotation and roller cams, these engines come complete with oil pumps and premium gasket sets. Every unit is compression-tested and checked for oil leaks before shipment, with no core charge and free continental U.S. freight included.
Featured procedures include:
- Engine blocks are magnafluxed, cylinders bored and precision-honed, and main saddles line-honed to exacting O.E. specifications
- Camshaft bearings line-bored for accurate center-to-center clearance
- Engine blocks and cylinder heads precision surfaced to insure proper sealing
- Cylinder heads magnafluxed or dye checked and machined for three-angle valve seats
- Crankshafts stress-relieved, precision ground and micro-polished for optimum durability and surface finish
- Camshafts precision ground or replaced with new to maintain the O.E. profile
- Each engine is tested for compression, oil pressure, oil leaks, unusual engine noise, and general operating condition before shipment
- Pistons and connecting rod assemblies are balanced in sets to achieve minimum engine vibration
- Oil pump or oil pump kit is supplied with each engine
- Premium installation gasket set is supplied with each engine
- All bearings are replaced with new
- Timing belts, chains, gears are replaced with new
- All rubber products are O.E. quality (i.e. main seals, valve stem seals, cam seals)
- All ATK remanufacturing facilities are ISO 9001 and QS 9000 certified
No Core Charge
Free Freight to anywhere in the continental U.S
18 Month No Fault Warranty
- Unlimited Hours
- Includes Labor, Towing & Fluids
Marine Application Chart
Call Customer Service for more details 1-877-388-2628
| # | Year | Description | Part # |
| 1 | 1985-1986 | GM 4.3 / 262/ 205HP Std rotation, 2 pc rear seal, 12 bolt intake Casting number: 177 | ATK-DM27 |
| 2 | 1986-1988 | GM 4.3 / 262 /205HP Standard rotation, 1 pc rear seal, flat tappet cam, 12 bolt intake, vlave cover bolts down center.Casting number: 553, 683 | ATK-DM28 |
| 3 | 1987-1992 | GM 4.3 / 262/ 205HP Std rotation, Roller cam engine. Heads have 3 bolt hole accessory mounting on the front of each head. Head casting #'s are 768, 103, 066, 996 and 476. With fuel pump hole. 12 bolt intake Casting number: 011, 867 | ATK-DM29 |
| 4 | 1987-1992 | GM 4.3 / 262/ 205HP Complpete with oil pan, front cover, valve covers installed. Std rotation, Roller cam engine. Heads have 3 bolt hole accessory mounting on the front of each head. Head casting #'s are 768, 103, 066, 996 and 476. With fuel pump hole. 12 bolt intake Casting number: 011, 867 | ATK-VM29 |
| 5 | 1992-1997 | GM 4.3 / 262/ 205HP Standard rotation, roller cam, balance shaft casting 12550286 or 10224541, no fuel pump hole, 14 bolt oil pan, 10 bolt steel front cover, 12 bolt intakeCasting number: 196, 534, 359, 535 | ATK-DMC7 |
| 6 | 1992-1997 | GM 4.3 / 262/ 205HP Standard rotation,Complete with oil pan, front cover, valve covers installed, roller cam, balance shaft casting 12550286 or 10224541, no fuel pump hole, 14 bolt oil pan, 10 bolt steel front cover, 12 bolt intake Casting number: 196, 534, 359, 535 | ATK-VMC7 |
| 7 | 1992-1997 | GM 43. / 262/ 205HP Std rotation, roller cam, no balance shaft, block casting 011, 867 , head casting 064, 181, 209. Mech fuel pump, steel front cover. Casting number: 011, 867 | ATK-DMC4 |
| 8 - NLA | 1996-2008 | GM 4.3 230HP Std rotation, FI, 262 Roller cam with balance shaft. Has roller rockers. Block has metric mounts. 6 bolt plastic timing cover. head casting should be 113. 8 bolt intake Casting number: 090M. This option is no longer available from the manufacturer. | ATK-DMW3 |
| 10 | 1996-2008 | GM 4.3 / 262/ 230HP Std rotation, Block casting 090M, metric threads, head casting 113, plastic front cover, roller cam, roller, rockers, balance shaft last 3 digits 542 or 748 Casting number: 090M | ATK-DMW4 |
| 11 | 1996-2008 | GM 4.3 / 262/ 230HP Std rotation, Complete w ith oil pan, front cover, valve covers installed. Block casting 090M w/ 7mm knock sensor, metric threads, head casting 113, plastic front cover, roller cam, roller, rockers, balance shaft last 3 digits 542 or 748 Casting number: 090M | ATK-VMW4 |
| 12 | 1996-1999 | GM 4.3 / 262/ 205HP Std rotation, block casting 090, head casting 772 or 140, roller cam, 10 bolt oil pan, 8 bolt intake. Balance shaft casting 10224542 Casting number: 090 | ATK-DMK9 |
| 13 | 1996-1999 | GM 4.3 / 262/ 205HP Std rotation, Complete with aluminum oil pan, front cover, valve covers installed, block casting 090, head casting 772 or 140, roller cam, 10 bolt oil pan, 8 bolt intake. Balance shaft casting 10224542 Casting number: 090 | VMK9 |
| 14 | 1996-1999 | GM 4.3 / 262/ 205HP Std rotation, Complete with steel oil pan, front cover, valve covers installed, block casting 090, head casting 772 or 140, roller cam, 10 bolt oil pan, 8 bolt intake. Balance shaft casting 10224542 Casting number: 090M | VMK9TP |
| 15 | 1996-1999 | GM 4.3 / 262/ 205HP Std rotation, block casting 090M, metric threads, head casting 140 or 772. 6 bolt plastic timing cover, 8 bolt intake. Casting number: 090M | DMW1 |
| 16 | 1996-1999 | GM 4.3 / 262/ 205HP Std rotation, Complete withaluminum oil pan, plastic front cover, valve covers installed.block casting 090M, metric threads, head casting 140 or 772. 6 bolt plastic timing cover, 8 bolt intake. Casting number: 090M | VMW1 |
| 17 | 2007-2011 | GM 4.3 / 262/ 230HP Std rotation, Block Cast #12600234/324, Balance Shaft, Head Cast # 12557113/12558114, M8 Bolts For Roller Rockers(Cast Rocker) 2 Knock Sensor Both Sides Casting number: 234, 324. | ATK-DMX1 |
| 18 - NLA | 2007-2011 | GM 4.3 / 262/ 230HP Complete with oil pan, front cover, valve covers installed. Std rotation, Block Cast #12600234/324, Balance Shaft, Head Cast # 12557113/12558114, M8 Bolts For Roller Rockers(Cast Rocker) 2 Knock Sensor Both Sides Casting number: 234, 324. This option is no longer available from the manufacturer. | ATK-VMX1 |
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LibertyMarineUSA supplies marine and RV parts and accessories from trusted U.S. manufacturers and proven, quality-approved imported manufacturers. We focus on dependable, quality-tested products from reliable sources, so you can maintain, repair, and outfit your boat or RV with confidence.
Our goal is simple: to deliver the best quality marine parts you can count on. We focus on dependable service, fast shipping, and proven products that are either American-made or American-tested and approved for quality and reliability.
Our goal is simple: to deliver the best quality marine parts you can count on. We focus on dependable service, fast shipping, and proven products that are either American-made or American-tested and approved for quality and reliability.