ACDelco 41-110 12621258 Iridium Spark Plugs Set of 8 PCM ZR6 Indmar LY6 6.0L GM

Listed on eBay by warehouse11store · 98.7% positive

Landed price to your door

$47

Indicative price. Stores change prices, so the final amount is the store's price on the day we buy — we tell you before charging any difference.

Economy shipping · ~0.5 kg · faster options at checkout

Includes shipping and taxes.

View on the store

About this item

This is a full set of 8 ACDelco 41-110 (GM 12621258) iridium spark plugs built for marine 6.0L engines. They work with PCM ZR6, Indmar LY6 6.0L, LS3 6.2L, and Crusader GM-based 6.0L setups. Each plug has a single ground electrode, measures 25mm in length with a 17.5mm thread reach, and needs its gap checked before install — .040in for PCM, .050in for Indmar. Good for anyone doing a full plug replacement on these marine engine builds.

Set of 8 ACDelco iridium spark plugs, part number 41-110 / GM 12621258
Single ground electrode design, 25mm length, 17.5mm (0.680in) thread reach
Fits PCM ZR6 6.0L, Indmar LY6 6.0L, LS3 6.2L, and Crusader GM-based 6.0L marine engines
Also supersedes part numbers 12609877, 12571164, 41-993, 41-974, 41-985
Gap before installing: .040in for PCM engines, .050in for Indmar engines
Runs on gasoline, sold as a full set of 8 plugs

Specifications

Type: Spark Plug
Brand: ACDelco
Hex Size: 16mm
Material: Iridium
Quantity: Set of 8
Resistor: Yes
Fuel Type: Gasoline
Item Length: 25 mm
Vintage Part: No
Configuration: Single
Recommended Use: Marine Engine
Country of Origin: United States
Installation Depth: 17.5mm (0.680")
OE/OEM Part Number: 12621258
Superseded Part Number: 12609877, 12571164, 41-993, 41-974, 41-985
Interchange Part Number: PZTR5A-15, 3861326, RP030011, 491009
Manufacturer Part Number: 41-110

iShip does not sell or own this product. You are asking us to buy it for you from eBay and deliver it to your door — you pay the store's price plus our service fee.