Motor Mounts - Motor Mounting Blocks, Kits and Accessories

Adjustable Engine Mount Kit - Black

Easier and stronger, IMCO's new complete motor mounting system is fully adjustable (height and width) for 25" to 30" stringers. Compact size allows easy access to hoses, oil coolers, water pumps, wiring and other hardware. All parts are pre-fabricated and ready to mount. Adjustable hardware is all stainless steel. Block mounts and stringer mounts are 356 aluminum heat treated to T6 hardness for maximum strength. Sold as Pair. Fits V8 BBC and SBC Engines only. Stringer bracket will need to be drilled to fit your application. No mounting hardware included.

Adjustable Engine Mount Kit - Polished

Easier and stronger, IMCO's new complete motor mounting system is fully adjustable (height and width) for 25" to 30" stringers. Compact size allows easy access to hoses, oil coolers, water pumps, wiring and other hardware. All parts are pre-fabricated and ready to mount. Adjustable hardware is all stainless steel. Block mounts and stringer mounts are 356 aluminum heat treated to T6 hardness for maximum strength. Sold in Pairs. Fits V8 BBC and SBC Engines only.

Billet Sterndrive Engine Mount (2 per engine needed, Sold Each)

These billet engine mounts by Hardin Marine offer an affordable option when looking to upgrade from your original rubber OEM mount in mild performance applications These strong billet aluminum mount bases are matched with 316 SS mounting posts These mounts are designed as a direct replacement for most MerCruiser OEM engine mounts. Base Measures 5-1/4" in Length, 2-1/2" in Width and 1-1/4" Tall. Mounting holes are 4" center to center. Overall Height from base to top of stud is 4-1/2".

2" Wide Universal Mounting Block (each)

These polished billet aluminum motor mount blocks are the perfect answer to many engine mounting solutions. Besides their great looks they provide the precision fit and strength you need. Mount feet cut on a 4 degree angle. You may need to machine these to fit your custom application. Sold individually.

Polished Stringer Mount Bolts to side of Stringer.

Mounts are cast A-356 aluminum heat treated to -T6 full hard for maximum strength. Stringer mounts (SOLD IN PAIRS).

Rubber Engine Mount, Single

Adjustable both vertically and horizontally to facilitate engine-propeller shaft alignment. Each mount has a capacity of 350 lbs. The rubber cushions are locked to the base and are oil and fuel resistant.

Rubber Engine Mount, Double

Increased capacity for Diesel and extra heavy-duty applications. The rubber cushions are locked to the base, not vulcanized and can be replaced. This mount is vertically adjustable to facilitate engine alignment. Each mount has a capacity of 550 lbs.

Rubber Engine Mount, Single

Adjustable both vertically and horizontally to facilitate engine-propeller shaft alignment. Each mount has a capacity of 350 lbs. The rubber cushions are locked to the base and are oil and fuel resistant.

Rubber Engine Mount, Single

Adjustable both vertically and horizontally to facilitate engine-propeller shaft alignment. Each mount has a capacity of 350 lbs. The rubber cushions are locked to the base and are oil and fuel resistant. This mount retains all of the fine features of the 620-52301, augmented by an additional tie-down area to bolt to the stringer pads.

Rubber Engine Mount, Double

Increased capacity for Diesel and extra heavy-duty applications. The rubber cushions are locked to the base, not vulcanized and can be replaced. This mount is vertically adjustable to facilitate engine alignment. Each mount has a capacity of 550 lbs. Sold Each.

Rubber Engine Mount, Single

Adjustable both vertically and horizontally to facilitate engine-propeller shaft alignment. Each mount has a capacity of 350 lbs. The rubber cushions are locked to the base and are oil and fuel resistant. This mount retains all of the fine features of the 620-52304, augmented by an additional tie-down area to bolt to the stringer pads.

Bracket Assembly Mercruiser 79550A1

Supercedes: 70938, 79550

Mercruiser Engine Mount Bracket 71128A2

Supercedes: 71128

MOUNT BASE ASSY Mercruiser 814263A1

Supercedes: 812430A1

Mercruiser Side Engine Mount 863384T

Motor Mount Bolt Kit replaces MerCruiser part # 10-97934A1

Kit Contains:

Additional Details:

• For: Mercruiser I

Interchanges/Replaces

GLM

• 21811

List of Containing Parts

Sierra Item #	OE/Competitor #	Quantity	Description	Image	Comments
18-0681	Chrysler/Force/US Marine 12-93416 12-934161 GLM 30020 Mercruiser Stern Drive 12-32834 12-8M2001219 Mercury Marine 12-32834 12-93416 12-934161	1	Washer		N/A
18-3729	GLM 19310 Mercruiser Stern Drive 10-36289 10-97934 Mercury Marine 10-97934	1	Motor Mount Bolt		N/A
NSS	Mercruiser Stern Drive 12-28421	1	Washer	No Image	N/A
NSS	Mercruiser Stern Drive 11-20220 11-82671317	1	Nut	No Image	N/A
NSS	Mercruiser Stern Drive 23-99299 23-36290	1	Spacer	No Image	N/A
NSS	Mercruiser Stern Drive 13-33734	1	Washer	No Image	N/A