861260T Fuel Injector – Mercury 5.7L, 6.2L, 454, 7.4 HO, 502, 8.2 Marine EFI

The 861260T Mercury Marine Fuel Injector is a genuine OEM‑spec replacement designed for a wide range of Mercury and MerCruiser multi‑port EFI marine engines, including 5.7L, 6.2L, 454, 7.4 HO, 502, and 8.2L platforms.

Each injector is professionally serviced, ultrasonically cleaned, flow‑tested, and calibrated to meet or exceed original Mercury performance specifications. This ensures proper fuel delivery, smooth idle, crisp throttle response, and reliable operation under the demanding conditions of marine use.

This is the correct replacement injector for many popular small‑block and big‑block Mercury EFI engines used in cruisers, performance boats, and sport boats.

✔ Key Features

• OEM‑spec Mercury 861260T fuel injector

• Fits a wide range of 5.7L–8.2L Mercury/MerCruiser EFI engines

• Fully serviced & flow‑tested to factory performance

• Restores proper fuel atomization and combustion efficiency

• Includes new O‑rings and seals

• Ready for direct installation

• Ideal for fixing misfires, rough idle, hesitation, or poor fuel econom

✔ Compatibility

Mercury / MerCruiser EFI Engines:

• 5.7L

• 6.2L

• 454

• 7.4 HO

• 502

• 8.2L

Covers multiple model years and EFI configurations across Mercury’s small‑block and big‑block marine engine lineup.