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Trunnion 66166A4 

# 525-66166A4
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Mercruiser Trunnion 66166A4

Supercedes: 66166

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NOTICE: Any images shown are representational ONLY and do not necessarily depict the actual part or included items in a particular part or kit. Mercury has been known to remove items depicted in product images such as screws or gaskets from kits they make without notification. For any product content, fitment or application questions on this part please call Mercury Product Support at 920-929-5040.
MSRP: $157.67
Your Price: $157.67
 You Save: 0% off MSRP!

NOTE: This Item is a Non-Stocked, Special Order, OEM Mercury Part.
ALL OEM Mercury parts may take up to 7-10 days to ship. All OEM Mercury parts are NON-RETURNABLE! Orders placed on all OEM Mercury parts are NON-REFUNDABLE! Please contact us with the part number and we can assist you with more accurate delivery time estimate.
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Additonal Info On This Product:

Applications Where This Item Is Used:

5.7/6.2L MPI INBOARD - 5.7L MPI HORIZON MIE5.7L EFI (MIE)TBI (GEN+) - 5.7L EFI MIE GM 350 V-8 1997
7.4L (MIE) HURTH/BORG WARNER (GEN V) - 7.4L MIE (LH) GEN. V GM 454 V-8 1992-19967.4L MPI (MIE) (GEN VI-L29) - 7.4L MPI MIE (L29) GEN. VI GM 454 V-8 1998-2000
8.2 HO EC - 8.2L INBOARD (H.O.) EC8.1L PLUS SERIES - 8.1L INBOARD (V-Drive)
5.7L INBOARD ENGINE - 5.7L MIE GM 350 V-8 1994-1995230 HP/260 HP INBOARD ENGINE (GM) - 230 MIE (4 BBL.) GM 305 V-8 1981-1986
350 MAGNUM EFI TOURNAMENT SKI - BLACK SCORPION 350 MAG SKI (GEN+) V-8 1996CUMMINS/MERCRUSER DIESEL 1.7L-120 - CMD 1.7 MI 120 I/L4
D7.3L/270 DIESEL ENGINE (STERN DRIVE/INBOARD) - 7.3L (BRAVO & MIE) DIESEL NAV 444 V-8 1994-19968.1L INBOARD - 8.1L INBOARD (H.O.)
350 MAG EFI TOURN SKI - 350 MAG. EFI SKI (TBI) GM 350 V-8 1994-1996350/6.2L MAG MPI (MIE) (GEN+) - 350 MAG MPI HORIZON MIE
350 MAGNUM EFI/MP TOURN SKI - 350 MAG MPI SKI GM 350 V-8 1995-19968.2 HO EC - 8.2L INBOARD (BASE) EC
5.7L 2BBL COMP SKI ENGINE - 5.7L COMPETITION SKI GM 350 V-8 1996350 MAG MPI (GEN+)MIE - 350 MAG. MPI MIE (GEN+) GM 350 V-8 1998
350 MAGNUM TOURNAMENT SKI (CARB) - 350 MAG (SKI) GM 350 V-8 1997454 MAG MPI HORIZON/MIE 8.2L MPI - 8.2L MIE MPI (GEN. VI) GM 502 V-8
5.7L COMPETITION SKI ENGINE - 5.7L COMPETITION SKI GM 350 V-8 1997MIE 454 MAG MPI SKI (GEN VI) - 454 MAG. MPI (SKI) GEN. VI GM 454 V-8 1996-1997
8.1L PLUS SERIES - 8.1L INBOARD (Inline)5.7L INBOARD - 5.7L CARB MIE
5.7L CARB INBOARD - 5.7L CARB MIE383 MAG 4V MIE REMAN - 383 Mag Inboard 4V
340 HP/7.4L W/BORG WARNER TRANS (GM) - 340 MIE W/B/W GM 454 V-8 1981-19875.7/6.2L MPI INBOARD EC - 5.7L MPI MIE EC
8.2 HORIZON / 8.2 HO EC - 8.2L INBOARD (Base) EC8.1L INBOARD - 8.1L INBOARD (Base)
340 HP/7.4L W/BORG WARNER TRANS (GM) - 7.4l MIE W/B/W GM 454 V-8 1988-19927.4L EFI (MIE) HURTH/BORG WARNER (GEN VI) - 7.4L TBI MIE (LH) GEN. VI GM 454 V-8 1996-1997
8.2L W/HURTH INBOARD GEN V - 8.2L MIE GEN. V GM 502 V-8 1993-19965.7 LITRE COMPETITION SKI ENGINE - 5.7L (SKI) GM 350 V-8 1985-1987
350/6.2L MAG MPI (MIE) (GEN+) - MX 6.2L MPI MIE7.4L TRANSMISSION W/HURTH (G.M.) - 7.4L MIE W/HURTH GM 454 V-8 1989-1992
454 MAG MPI HORIZON/MIE 8.2L MPI - 454 MAG. MPI HORIZON (GEN. VI) GM 454 V-8350 MAG MX 6.2L MPI INBOARD - 350 MAG MPI HORIZON MIE
454 MAG MPI HORIZON AND 8.2L MIE MPI - 454 MAG. MPI HORIZON (GEN. VI) GM 454 V-85.7/6.2L MPI INBOARD EC - 6.2L MPI MIE EC
454 EFI SKI ENGINE - 454 EFI (SKI) GEN. V GM 454 V-8 1995350 MAG MPI MX 6.2L MPI INBOARD - MX 6.2L MPI HORIZON MIE
350 MAG MPI MX 6.2L MPI INBOARD - 350 MAG MPI HORIZON MIE8.2L W/HURTH TRANSMISSION MIE ENGINE - 8.2L MIE W/HURTH GM 502 V-8 1990-1992
8.1L INBOARD EC - 8.1L INBOARD (Base) ECD1.7L DTI STERNDRIVE (ALPHA) - D1.7L DTI
350 MAG MX 6.2L MPI INBOARD - MX 6.2L MPI HORIZON MIE230 HP/5.0L 260 HP/5.7L ENGINE - 5.7L MIE GM 350 V-8 1988-1993
5.7L INBOARD ENGINE - 5.7L MIE GM 350 V-8 1997350 MAG TOURNAMENT SKI (CARB) - 350 MAG (SKI) GM 350 V-8 1991-1996
383 MAG STROKER INBOARD - REMAN - 383 MAG STROKER INBOARD350 MAG EFI TBI TOURN SKI (GEN+) - 350 MAG. EFI SKI (GEN+) GM 350 V-8 1996
350 MAGNUM TBI TOURN SKI - 350 MAG EFI SKI (GEN+) GM 350 V-8 1997357 HORIZON INBOARD REMAN - 357 HRZ 630A BOBTAIL RM
SCORPION 377 - Scorpion 377454 MAG MPI HORIZON AND 8.2L MIE MPI - 8.2L MIE MPI (GEN. VI) GM 502 V-8
5.7L CARB (MIE) (GEN+) - 5.7L CARB MIE7.4L/8.2L MPI (MIE) GEN VI - 8.2L MIE MPI (LH) GEN. VI GM 502 V-8 1996-1997
230 HP/5.0L 260 HP/5.7L ENGINE - 260 MIE GM 350 V-8 19878.1L TOWSPORT MPI - 8.1L TOWSPORT (Base)
230 HP/5.0L 260 HP/5.7L ENGINE - 5.0L MIE (4 BBL.) GM 305 V-8 1987-19955.7/6.2L MPI INBOARD - 6.2L MPI HORIZON MIE
MIE 7.4L HURTH/BORG WARNER (GEN IV) - 7.4L MIE (LH) GEN. VI GM 454 V-8 1996-19978.2 HORIZON / 8.2 HO EC - 8.2L INBOARD (H.O.) EC
MIE 5.7L INBOARD - 5.7L MIE GM 350 V-8 1996MIE 7.4 EFI HURTH/BORG WARNER -LH ONLY - 7.4L MIE MPI (LH) GEN. V GM 454 V-8 1995-1996
7.4L/8.2L MPI (MIE) GEN VI - 7.4L MIE MPI (LH) GEN. VI GM 454 V-8 1996-19978.1L INBOARD EC - 8.1L INBOARD (H.O.) EC
5.7L COMPETITION SKI ENGINE - 5.7L COMPETITION SKI GM 350 V-8 1987-19955.7L COMPETITION SKI ENGINE - 5.7L COMPETITION SKI GM 350 V-8 1987-1995
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