ACDelco MR43LTS OEM Replacement Parts for Mercury Mercruiser Quicksilver — 8-Pack, OEM Fit

This 8-pack supplies original-equipment matching parts intended for owners, technicians, and fleet managers who need consistent, OEM-compatible replacements for Mercury Mercruiser Quicksilver systems. Each piece is labeled with AC Delco identification and the OEM cross-number to help you verify fitment before purchase. The kit is packaged for easy inventory and service use so you can swap components in groups without sourcing single pieces repeatedly.

Which original part does the ACDelco 862029 MR43LTS replace?

This AC Delco item corresponds to the factory OEM reference used by Mercury and Quicksilver, making it suitable where parts are listed under the MR43LTS / 862029 cross-reference. It’s intended as a like-for-like replacement rather than an aftermarket redesign, preserving the original installation geometry and connection points.

• OEM cross-reference: 862029 / MR43LTS
• Compatible with Mercury Mercruiser Quicksilver parts lists when MR43LTS is specified
• Sold in an 8-count set for service intervals or multi-cylinder applications

How do I install these parts in my Mercury Mercruiser engine?

Installation follows the same steps as the original factory component: remove the worn item, verify mating surfaces, and secure the AC Delco piece with the manufacturer-recommended torque and sealants. If you’re servicing multiple cylinders or engine stations, replace the full set to maintain uniform condition and reduce future downtime.

• Follow Mercury Mercruiser service manual torque and procedure
• Inspect mating surfaces and replace gaskets or seals as needed
• Replace in matched sets (8-pack) for consistent engine balance

What quality features and materials should I expect?

ACDelco supplies OEM-compatible components produced to match the original material specification and dimensional tolerances. While specific metallurgy varies by part function, ACDelco emphasizes consistent manufacturing, corrosion resistance for marine environments, and identification marks for traceability.

• Manufactured to OEM dimensional tolerances for proper fit
• Corrosion-resistant finishes suitable for marine use where applicable
• Individual parts marked for identification and quality control

Can I buy a smaller quantity if I only need one or two?

This listing is for an 8-pack; AC Delco and many dealers may offer single units or smaller quantities separately, but availability depends on distributor inventory. If you only need a few pieces, check with local marine parts suppliers or ACDelco-authorized dealers for loose-item ordering.

• Sold here as an 8-piece service pack
• Local dealers may supply single units or smaller packs
• Keep OEM numbers handy to request exact replacements

Who is this for: technicians, boat owners, and maintenance teams who service Mercury Mercruiser Quicksilver engines and prefer OEM-equivalent parts for reliability and compatibility. The 8-pack is especially useful for multi-cylinder services, scheduled maintenance, or stocking a parts kit to reduce future downtime. Verify your engine’s parts diagram and OEM number MR43LTS / 862029 before ordering to ensure fitment.