{"product_id":"mercury-mercruiser-trim-cylinder-spacer-840802","title":"Mercury MerCruiser Trim Cylinder Spacer 840802","description":"\u003ch2\u003eMercury MerCruiser Trim Cylinder Spacer — 840802\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eField\u003c\/th\u003e\n\u003cth\u003eDetail\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e840802 \/ 23-840802\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMercury Marine \/ MerCruiser\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOfficial Product Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eTrim Cylinder Mounting Spacer (OEM Genuine)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSupersedes\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNone on record\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eReplaced By\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNo supersession confirmed — 840802 remains an active Mercury part\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSystem\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eTrim \/ Tilt — Integrated Transom \/ Gimbal Ring Assembly\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDiagram Position\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eTrim cylinder mounting hardware position (ref #24 where applicable) — qty 2 per assembly\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eQuantity Required\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2 per assembly — port and starboard trim cylinder mounting positions\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWeight (approx.)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0.2 kg \/ 15.1 oz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSold As\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e 2 pc. for a complete assembly service\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eWhat This Part Does\u003c\/h3\u003e\n\u003cp\u003eThe 840802 is a genuine Mercury OEM trim cylinder mounting spacer used in selected MerCruiser Bravo-series sterndrive integrated transom and gimbal ring assemblies. It installs at the trim cylinder mounting pin positions and maintains the correct spacing and alignment of the trim cylinder attachment points. Two 840802 spacers are shown per assembly — one at each trim cylinder mounting position. The spacer works together with the mounting pins and retaining rings to secure the trim cylinders and allow correct pivoting through the trim range.\u003c\/p\u003e\n\u003ch3\u003eCompatible Applications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eMerCruiser Bravo sterndrive integrated transom assemblies where the parts diagram specifies 840802\u003c\/li\u003e\n\u003cli\u003eMerCruiser Bravo X \/ XZ configurations using the applicable power-trim cylinder arrangement\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eConfirm by MerCruiser drive model, transom assembly configuration, and serial number. The exact assembly serial number determines which spacers and mounting hardware apply to the specific installation.\u003c\/p\u003e\n\u003ch3\u003eSerial Number \u0026amp; Fitment Notice\u003c\/h3\u003e\n\u003cp\u003eConfirm the drive model and transom assembly serial number against the applicable Mercury gimbal ring \/ integrated transom schematic before ordering. The same assembly also contains a separate \u003cstrong\u003e840803 spacer\u003c\/strong\u003e at a different diagram position — 840802 and 840803 are not interchangeable. Always match by diagram position and part number:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e840802\u003c\/strong\u003e — spacer, quantity 2 (this part)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e840803\u003c\/strong\u003e — separate spacer, typically quantity 1 (different position)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e805272\u003c\/strong\u003e — retaining ring, quantity 2\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eDimensions\u003c\/h3\u003e\n\u003cp\u003eExact dimensions are not published in the Mercury consumer catalog. Confirm fitment via the gimbal ring \/ integrated transom parts diagram for your specific drive model and serial number. Do not substitute 840803 based on visual similarity — the two spacers differ in geometry at the mounting-pin contact surface.\u003c\/p\u003e\n\u003ch3\u003eWhen to Replace\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eVisible wear, grooving, or elongation at the mounting pin contact surface\u003c\/li\u003e\n\u003cli\u003eCorrosion or pitting on the spacer body\u003c\/li\u003e\n\u003cli\u003eDistortion from impact or excessive trim cylinder movement\u003c\/li\u003e\n\u003cli\u003eExcessive looseness at the trim cylinder mounting point\u003c\/li\u003e\n\u003cli\u003eDamage found during trim cylinder removal or transom service\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eWear in the spacers should also prompt inspection of the mounting pins, retaining rings, and adjacent bushings. Replace in pairs — both port and starboard — whenever one shows wear.\u003c\/p\u003e\n\u003ch3\u003eService Interval\u003c\/h3\u003e\n\u003cp\u003eInspect the trim cylinder mounting spacers during any transom, gimbal ring, or trim cylinder service. No fixed replacement interval applies, but replacement is recommended whenever the assembly is disassembled and the spacers show wear, corrosion, or looseness. Inspect both spacers together — if one is worn, the other typically needs replacement as well.\u003c\/p\u003e\n\u003ch3\u003eInstallation Notes\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eInspect both 840802 spacers — replace as a pair if either shows wear\u003c\/li\u003e\n\u003cli\u003eCheck mounting pins for scoring, corrosion, or deformation before reinstalling\u003c\/li\u003e\n\u003cli\u003eInspect retaining rings (805272) for deformation — replace if compressed or distorted\u003c\/li\u003e\n\u003cli\u003eInspect adjacent bushings for excessive play\u003c\/li\u003e\n\u003cli\u003eConfirm trim cylinders pivot freely through the full trim range after assembly\u003c\/li\u003e\n\u003cli\u003eFollow the Mercury service procedure for the specific transom assembly and serial number\u003c\/li\u003e\n\u003cli\u003eDo not force a worn or corroded spacer onto the mounting pin — damage to the pin or surrounding hardware can affect trim cylinder alignment and operation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eAlternate \u0026amp; Superseded Part Numbers\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e840802\u003c\/strong\u003e — Mercury \/ MerCruiser OEM number\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e23-840802\u003c\/strong\u003e — Mercury catalog prefix format\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eNo superseding number is confirmed. 840802 remains listed as an active Mercury part. Do not substitute 840803 — it is a different spacer at a different diagram position in the same assembly.\u003c\/p\u003e\n\u003ch3\u003eRelated Parts\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e840803\u003c\/strong\u003e — separate trim cylinder spacer (different diagram position, qty 1)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e805272\u003c\/strong\u003e — retaining ring (qty 2 per assembly)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e840728\u003c\/strong\u003e — trim cylinder mounting pin\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e8M0108286\u003c\/strong\u003e — starboard trim cylinder assembly\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e8M0108285\u003c\/strong\u003e — port trim cylinder assembly\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e806189T1\u003c\/strong\u003e — trim cylinder anode assembly\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTechnical FAQ\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Do I need to order two of these?\u003c\/strong\u003e\u003cbr\u003eA: Yes — the Mercury parts diagram shows \u003cstrong\u003etwo 840802 spacers per assembly\u003c\/strong\u003e, one at each trim cylinder mounting position (port and starboard). This listing is sold individually, so order 2 for a complete assembly service.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Is 840802 the same as 840803?\u003c\/strong\u003e\u003cbr\u003eA: No. Both are spacers used in the same trim cylinder mounting assembly, but they are different parts at different diagram positions. 840802 is used at quantity 2; 840803 is a separate spacer typically shown at quantity 1. Match by diagram position and part number — not by appearance.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Should I replace the retaining rings and mounting pins at the same time?\u003c\/strong\u003e\u003cbr\u003eA: Yes, as a best practice. While the trim cylinder assembly is apart, inspect the retaining rings (805272) and mounting pins (840728) for wear, corrosion, or deformation. Replacing worn hardware together prevents having to disassemble the assembly again shortly after.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: How do I confirm this is the right spacer for my Bravo drive?\u003c\/strong\u003e\u003cbr\u003eA: Locate the gimbal ring \/ integrated transom schematic for your specific MerCruiser drive model and transom assembly serial number, and confirm that 840802 appears at the trim cylinder mounting spacer position (ref #24 where applicable). If the spacer being replaced still has a visible part number, that is the fastest confirmation.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Can trim cylinder misalignment be caused by a worn spacer?\u003c\/strong\u003e\u003cbr\u003eA: Yes. Worn or elongated spacers allow excess movement at the trim cylinder mounting point, which can affect trim cylinder alignment, pivot geometry, and in severe cases contribute to uneven trim operation. Replace worn spacers before reassembling the trim cylinder hardware.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003eParts Desk Insights\u003c\/h3\u003e\n\u003cp\u003eThe most common issue with 840802 is customers confusing it with 840803 — both are spacers in the same assembly and they look similar, but they are different parts at different positions. Always confirm by diagram position, not appearance. The other frequent situation is customers ordering just one when the assembly requires two — this is a sold-individually part and the diagram calls for a pair. If a customer is pulling the trim cylinders for any reason, recommending the retaining rings (805272) and a check of the mounting pins (840728) at the same time is good practice, since those parts are hard to access without the cylinders already removed.\u003c\/p\u003e","brand":"MERC","offers":[{"title":"Default Title","offer_id":43563884249124,"sku":"840802","price":89.24,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0743\/5799\/7604\/files\/545b1349-c9fc-4c9b-b6d9-4c06cd37c9f1.png?v=1789169016","url":"https:\/\/marisolmarine.com\/products\/mercury-mercruiser-trim-cylinder-spacer-840802","provider":"Marisol Marine Company","version":"1.0","type":"link"}