Mercury MerCruiser - Rear Engine Mount Washer - 12-32834
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The Mercury MerCruiser Quicksilver Rear Engine Mount Washer 12-32834 is an OEM structural washer used in select MerCruiser rear engine mount, flywheel housing, and transom assembly applications. It helps support proper engine mounting, spacing, and vibration control where the engine is secured to the sterndrive mounting system.
Key Features
- Genuine Mercury/Quicksilver rear engine mount washer
- Part number: 12-32834
- Also referenced as 32834
- Size: 0.9375" ID x 1.750" OD x 0.172" thick
- Approximate fractional size: 15/16" ID x 1-3/4" OD x 11/64" thick
- GTIN / UPC: 0745061074453
- Used in select rear engine mount, flywheel housing, and transom assembly locations
Engine Compatibility
Used across select MerCruiser sterndrive applications, including Alpha One, Alpha One Gen II, and Bravo I / II / III drive packages. Common engine families include 3.0L / 3.0LX, 4.3L V6, 5.0L, 5.7L / 350 Mag, 7.4L / 454, 496 Mag, and 502 Mag configurations. Also used on select Mercury 75 HP, 80 HP, 90 HP, 100 HP, and 115 HP EFI 4-stroke outboard applications.
Serial Number Fitment Notice
Verify fitment by engine or drive serial number, mount diagram, and original washer part number before ordering. Rear mount hardware can vary by engine package, flywheel housing, transom assembly, and production range.
When This Part Needs Replacement
Replace this washer if it is crushed, split, deteriorated, missing, distorted, oil-soaked, corroded, or damaged during rear mount or transom assembly service.
Installation Notes
Install in the correct rear engine mount stack-up shown in the Mercury parts diagram. Inspect the rear mounts, mount bolts, flywheel housing, transom assembly hardware, alignment, and surrounding components before reassembly. Follow Mercury service procedures for torque and engine alignment.
Alternate/Superseded Part Numbers
Replaces Mercury 12-934161, 12-93416, and 8M2001219. Primary references: 12-32834 and 32834.
Parts Desk Insight
Rear engine mount hardware affects more than fastening. The washer stack-up helps maintain proper spacing and alignment, so replacing missing or compressed washers can help prevent vibration, alignment issues, and premature coupler wear.
Shipping: Ships same or next day for fast Canada wide shipping. ⚓
Shipping information
In-stock and OEM parts: ship same or next business day.
Locally warehoused items: ship within 3–4 business days.
Special-order items: timeline confirmed after order.
Returns & warranty
Returns & Satisfaction Guarantee
We stand firmly behind the quality of every product we sell. Your confidence matters to us — and we back it with a straightforward 30-Day Satisfaction Guarantee.
If you are not fully satisfied, you may request a return within 30 days of delivery. All returns must receive pre-approval prior to being sent back. Unauthorized returns will not be accepted.
To qualify for a return:
Item must be in new, unused condition
Product must be in its original packaging
All parts, components, hardware, manuals, and accessories must be included
Packaging must be undamaged and suitable for resale
Important:
Electronics are strictly inspected. No returns on open-box electronics. Exceptions may apply only with prior written approval. Any electronic unit that has been installed, powered, activated, or altered may not be eligible for return.
We are serious about product integrity — and equally serious about taking care of our customers. If there is ever a product issue, contact us immediately so we can make it right.
For return authorization, please contact our support team before shipping anything back.