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PLUG @3 Mercruiser 22-390721 

# 525-22-390721
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PLUG (Priced Each. Must be sold in quantities of 3) Mercruiser 22-390721

Supersedes: 22-29380, 22-39072, 22-52644, 22-35268, 22-21290

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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: $8.90
Your Price: $8.90
 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:

5.7L MPI SKI - 5.7L MPI SKI20/25/JET 20 - 20/25 SEAPRO/MARATHON (2-STROKE) - 20 JET
662 SCI - 662 SCiBRAVO XR I - III SPORT MASTER - BRAVO XR THREE
540 HP - 540MPI STERNDRIVE - 5.0L MPI ALPHA/BRAVO
200 DFI M2 JET DRIVE - 200 DFI M2 JET DRIVE (POWERHEAD)200 DFI JET DRIVE - 200 DFI JET DRIVE (PUMP)
225XS / 225 SPORT XS DFI (3.0L) - 225 SPORT XSBLACK SCORPION - BLACK SCORPION 350 MAG MPI
CUMMINS/MERCRUISER DIESEL 7.3L D-TRONIC BRAVO - D7.3L D-TRONIC 260 LD 19998.2 HO EC - 8.2L INBOARD (BASE) EC
5.0L,350 MAG,MX 6.2L MPI STERNDRIVE - 350 MAG MPI HORIZON ALPHA/BRAVO8.2L MAG / 8.2L MAG HO - 8.2L Mag (Base Model)
8.2 MAG / 8.2 MAG HO EC - 8.2L Mag EC (Base Model)8.2 MAG HO EC - 8.2L Mag EC (H.O. Model)
200/225/250/200 PRO XS (3.0L)(MECHANICAL) - 225 (DFI) 3.0L357 MAG BRAVO 4V/357 ALPHA 4V/383 MAG BRAVO 4V - 383 Mag Bravo 4V
250XS / 250 SPORTXS DFI (3.0L) - 250 Sport XS5.0L, 350, 377 MAG MPI STERNDRIVE - 350 MAG MPI ALPHA/BRAVO
350 MAG (MPI)SKI - 350 MAG MPI SKI5.7/6.2L MPI INBOARD - 6.2L MPI HORIZON MIE
5.0L,350 MAG,MX 6.2L MPI STERNDRIVE - MX 6.2L MPI HORIZON BRAVO662/700 SCI - 700 SCi
BRAVO XR I - III SPORT MASTER - BRAVO XR SPORTMASTER8.2 MAG HO EC - 8.2L Mag EC (Base Model)
4.5L MPI ALPHA/BRAVO - 4.5L MPI 250 Alpha/Bravo ECBRAVO XR I - III SPORT MASTER - HI PERFORMANCE TRANSOM
30/40 (2 CYLINDER) 2-STROKE - 30 (2 CYL.)4.3L MPI ALPHA/BRAVO( 262 C.I.D. MULTI PORT INJECTION ) - 4.3L MPI ALPHA/BRAVO
8.2L MAG / 8.2L MAG HO - 8.2L Mag (H.O. Model)20/25/JET 20 SEAPRO/MARATHON 15XD SUPER 15/JET 20) (2-STROKE) - 15 SEA PRO (XD)
383 MAG 4V MIE REMAN - 383 Mag Inboard 4VBRAVO XR I - III SPORT MASTER - BRAVO XR ONE
350 MAG MX 6.2L MPI SKI - 350 MAG MPI SKI20/25/JET 20 - 20/25 SEAPRO/MARATHON (2-STROKE) - 20 (2 CYL.)
357 MAG BRAVO 4V/357 ALPHA 4V/383 MAG BRAVO 4V - 357 Mag Bravo 4V700 SCI - 700 SCi
565 EFI - 565 EFI5.0, 350, 377 MAG MPI STERNDRIVE - 377 MAG MPI BRAVO
5.0, 350, 377 MAG MPI STERNDRIVE - 350 MAG MPI ALPHA/BRAVO200 DFI JET DRIVE - 200 DFI JET DRIVE (POWERHEAD)
250XS / 250 SPORTXS DFI (3.0L) - 250XS (3.0L DFI)350 MAG MX 6.2L MPI INBOARD - MX 6.2L MPI HORIZON MIE
8.2 HORIZON / 8.2 HO EC - 8.2L INBOARD (Base) EC300XS (3.2L) - 300XS (3.2L DFI)
200/225/250/200 PRO XS (3.0L)(MECHANICAL) - 200 PRO XS (DFI) 3.0L520 HP - 520
350 MPI ALPHA REMAN - 350 MPI ALPHA225 SPORT XS DFI (3.0L) - 225 SPORT XS (3L)
383 MAG STROKER INBOARD - REMAN - 383 MAG STROKER INBOARD5.7L TOW SPORT - 5.7L CARB SKI
20/25/JET 20 SEAPRO/MARATHON 15XD SUPER 15/JET 20) (2-STROKE) - 20 (2 CYL.)20/25/JET 20 - 20/25 SEAPRO/MARATHON (2-STROKE) - 25 (2 CYL.)
M8 DRIVE AND M SERIES TRANSOM - M8 Drive8.1L TOWSPORT MPI - 8.1L TOWSPORT (Base)
383 MAG STROKER-REMANUFACTURED - 383 MAG STROKER5.0, 350, 377 MAG MPI STERNDRIVE - 5.0L MPI ALPHA/BRAVO
5.7L CARB INBOARD - 5.7L CARB MIE200XS DFI (2.5L) ROS - 200XS DFI (2.5L) ROS
357 MAG BRAVO 4V/357 ALPHA 4V/383 MAG BRAVO 4V - 357 Alpha 4V225 PRO XS (3.0L) DFI - 225 PRO XS (3.0L DFI)
BRAVO XR I - III SPORT MASTER - INTEGRATED TRANSOM8.2 HO EC - 8.2L INBOARD (H.O.) EC
SCORPION 350 EC / 377 HO EC - SCORPION 350 EC5.7/6.2L MPI INBOARD - 5.7L MPI HORIZON MIE
383 MAG STROKER BRAVO-REMAN - 383 MAG STROKER BRAVO20/25/JET 20 SEAPRO/MARATHON 15XD SUPER 15/JET 20) (2-STROKE) - 25, 25 SEA PRO, SUPER 15 (2 CYL.)
8.2 HORIZON / 8.2 HO EC - 8.2L INBOARD (H.O.) EC200 DFI M2 JET DRIVE - 200 DFI M2 JET DRIVE (PUMP)
200/225/250/200 PRO XS (3.0L)(MECHANICAL) - 250 (DFI) 3.0LJP 3.0L DFI - JP 3.0L DFI
20/25/JET 20 SEAPRO/MARATHON 15XD SUPER 15/JET 20) (2-STROKE) - 25, 25 MARATHON, SUPER 15 (2 CYL.)5.7L MPI TOWSPORT WITH GEN III - 5.7L MPI TOWSPORT WITH GEN III
662/700 SCI - 662 SCiSCORPION 350/377 - SCORPION 377
M8 DRIVE AND M SERIES TRANSOM - M Series TransomJP5 3.0L DFI - JP 3.0L DFI
135/150/175 DFI (2.5L) - V-175 DFI (2.5L)MPI STERNDRIVE - 350 MAG MPI HORIZON ALPHA/BRAVO
250XS DFI (3.0L) - 250XS (3.0L DFI)5.0L, 350, 377 MAG MPI STERNDRIVE - 377 MAG MPI BRAVO
5.0L,350 MAG,MX 6.2L MPI STERNDRIVE - 5.0L MPI ALPHA/BRAVO200XS DFI (2.5L) - 200XS DFI (2.5L)
525 EFI - 525 EFI20/25/JET 20 SEAPRO/MARATHON 15XD SUPER 15/JET 20) (2-STROKE) - 15 MARATHON XD
600 SCI - 600 SCi115/135/150 DFI (2.5L) - V-135 DFI (2.5L)
5.7L INBOARD - 5.7L CARB MIESCORPION 350 EC / 377 HO EC - SCORPION 377 HO EC
350 MAG MX 6.2L MPI INBOARD - 350 MAG MPI HORIZON MIE250 PRO XS (3.0L) - 250 PRO XS (3.0L DFI)
BLACK SCORPION - BLACK SCORPION MX 6.2L MPI20/25/JET 20 SEAPRO/MARATHON 15XD SUPER 15/JET 20) (2-STROKE) - 20 JET
8.2 MAG / 8.2 MAG HO EC - 8.2L Mag EC (H.O. Model)5.0L / 5.7L STERNDRIVE - 5.7L CARB ALPHA/BRAVO
SCORPION 350/377 - SCORPION 350385 PERFORMANCE TUNED - 385 Performance Tuned
357 HORIZON INBOARD REMAN - 357 HRZ 630A BOBTAIL RM350 MAG MX 6.2L MPI SKI - MX 6.2L MPI SKI
200/225 (3.0L DFI) - 225 (DFI)5.0L, 350, 377 MAG MPI STERNDRIVE - 5.0L MPI ALPHA/BRAVO
250 SPORTXS DFI (3.0L) - 250 Sport XSMPI STERNDRIVE - MX 6.2L MPI HORIZON BRAVO
225/250 PRO XS (3.0L) - 250 PRO XS (3.0L DFI)225/250 PRO XS (3.0L) - 250 PRO XS (3.0L DFI)
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