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Mercruiser Eight Chamber Spark Tester 91-850439T1 

# 525-91-850439T1
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Mercruiser Eight Chamber Spark Tester 91-850439T1

Supersedes: 91-850439, 91-850439T

Supercedes: FT11260-1, FT11295, 91-850439, 91-850439T, 91-850439T1

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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: $128.00
Your Price: $128.00
 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:

200 DFI JET DRIVE - 200 DFI JET DRIVE (PUMP)6/8/9.9/15 HP - 8
250 EFI LONG (3.0L) - 250 LONG (3.0L)(EFI)200/225/250 (3.0L) SEAPRO/MARATHON EFI - 200 (3.0L EFI)
20/25/JET 20/SUPER 15/15XD/25 SEAPRO/MARATHON 2 CYLINDER - 25, 25 SEA PRO, SUPER 15 (2 CYL.)200 OPTIMAX V6 DFI - 200 PRO XS (DFI) 3.0L
6/8/9.9/15 HP - 156/8/SAILMATE 9.9/SAILPOWER 15 HP - 15
75/90 (4-STROKE) - 75 (4-STROKE)(BODENSEE)20/25/JET 20 - 20/25 SEAPRO/MARATHON (2-STROKE) - 20 JET
40/50 /45 BODENSEE/50 BIGFOOT 4-STROKE - 45 BODENSEE (4-STROKE)40/50 JET 30 (3 CYLINDER) 2-STROKE - 40 (3 CYL.)
150/175/200 EFI - V-150 (EFI)XR10 AND 10/SEAPRO/MARATHON 10/15/VIKING 10 - 10 VIKING
240 EFI AND 240 EFI M2 JET DRIVE - 240 EFI M2 JET DRIVE (PUMP)25 (4-STROKE) - 25 (4-STROKE)
135/140/150/200/XR6/MAGNUM III/140JET (2.5L)(CARB) - V-13555/60 JET 40 (3 CYLINDER) - 60 (3 CYL.)
200/225/250/200 PRO XS (3.0L)(MECHANICAL) - 200 PRO XS (DFI) 3.0L135/140/150/200/XR6/MAGNUM III/140JET (2.5L)(CARB) - MAGNUM III
55/60 JET 40 (3 CYLINDER) - 55 (3 CYL.)XR10 AND 10/SEAPRO/MARATHON 10/15/VIKING 10 - 10 SEA PRO
200 DFI JET DRIVE - 200 DFI M2 JET DRIVE (PUMP)55/60/45 JET/60 BIGFOOT (2-STROKE) - 45 JET
10/15 SEAPRO/MARATHON-10/15 VIKING (2-STROKE) - 10 SEA PRO8/9.9/13.5/15 (2-STROKE) - 8
200/225/250/200 PRO XS (3.0L)(MECHANICAL) - 250 (DFI) 3.0L40 ITALY/45 BODENSEE 50/50 BIGFOOT 4-STROKE - 40 ITALY (4-STROKE)
6/8/9.9/15 HP - 625 HP (3 CYL.)(INTERNATIONAL) - 25 H.P. LIGHTNING (3 CYL.) (INTL. ONLY)
20/25/JET 20 SEAPRO/MARATHON 15XD SUPER 15/JET 20) (2-STROKE) - 20 JET250 DFI AND 250 DFI M2 JET DRIVE - 250 DFI M2 JET DRIVE (PUMP)
20/25/JET 20 - 20/25 SEAPRO/MARATHON (2-STROKE) - 25 (2 CYL.)150/200 EFI (2.5L) - V-150 EFI (2.5L)
8/9.9/13.5/15 (2-STROKE) - 15200/225/250 (3.0L) EFI - 250 (3.0L EFI)
75/90 (4-STROKE) - 90 (4-STROKE)100/115/125 HP 80 JET (4 CYLINDER) - 115 (4 CYL.)
200 DFI M2 JET DRIVE - 200 DFI M2 JET DRIVE (PUMP)55/60 JET 40 (3 CYLINDER) - 40 JET
40/50 HP JET 30 (3 CYL.) - 40 (3 CYL.)40/50 /45 BODENSEE/50 BIGFOOT 4-STROKE - 40 (4-STROKE)
20/25/JET 20 SEAPRO/MARATHON 15XD SUPER 15/JET 20) (2-STROKE) - 25, 25 SEA PRO, SUPER 15 (2 CYL.)150/175/200 EFI - V-175 (EFI)
4/5 HP - 5 (2-STROKE)150/175/200 EFI (2.5L) - V-150 EFI (2.5L)
200/225/250/200 PRO XS (3.0L)(MECHANICAL) - 225 (DFI) 3.0L2/2.5/3.3HP 2-STROKE - 3.3
20/25/JET 20 SEAPRO/MARATHON 15XD SUPER 15/JET 20) (2-STROKE) - 15 SEA PRO (XD)225 AND 225 SEAPRO/MARATHON (3.0L CARB) - 225 (3.0L CARB)
40 ITALY/45 BODENSEE 50/50 BIGFOOT 4-STROKE - 45 BODENSEE (4-STROKE)240 EFI AND 240 EFI M2 JET DRIVE - 240 EFI JET DRIVE (POWERHEAD)
200 DFI JET DRIVE - 200 DFI JET DRIVE (POWERHEAD)40/50 /45 BODENSEE/50 BIGFOOT 4-STROKE - 50 BIGFOOT (4-STROKE)
135/150/175/200 XR6/MAGNUM III/140 JET (CARB) - V-15010/15 SEAPRO/MARATHON-10/15 VIKING (2-STROKE) - 10 VIKING
200/225/250 (3.0L) SEAPRO/MARATHON EFI - 225 (3.0L EFI)55/60 JET 40/45 (3 CYLINDER) - 45 JET
135/140/150/200/XR6/MAGNUM III/140JET (2.5L)(CARB) - XR-6135/140/150/200/XR6/MAGNUM III/140JET (2.5L)(CARB) - V-200
2.5/3 HP(NON-SHIFT) - 3175 PROXS (2.5L) - 175 PROXS (2.5L)
8/9.9/13.5/15 (2-STROKE) - 6135/150/175 DFI (2.5L) - V-175 DFI (2.5L)
40/50 JET 30 (3 CYLINDER) 2-STROKE - 30 JET (3 CYL.)135/140/150/200/XR6/MAGNUM III/140JET (2.5L)(CARB) - V-140 (INTERNATIONAL)
2/2.5/3.5 4-STROKE - 3.5 (4-STROKE) Carb JCI30/40 (2 CYLINDER) 2-STROKE - 30 (2 CYL.)
20/25/JET 20/SUPER 15/15XD/25 SEAPRO/MARATHON 2 CYLINDER - 15 SEA PRO (XD)30/40 HP - 30 (2 CYL.)
6/8/SAILMATE 9.9/SAILPOWER 15 HP - 9.920/25/JET 20/SUPER 15/15XD/25 SEAPRO/MARATHON 2 CYLINDER - 20 JET
XR10 AND 10/SEAPRO/MARATHON 10/15/VIKING 10 - 10 MAGNUMXR/MAGNUM 10/SEAPRO/MARATHON 10/SEAPRO/MARATHON 15 - 10 MAGNUM
2.5/3 HP(NON-SHIFT) - 2.5115 EFI (4-STROKE) - 115 EFI (4-STROKE)
6/8/9.9/15 HP - 9.9XR/MAGNUM 10/SEAPRO/MARATHON 10/SEAPRO/MARATHON 15 - XR10
250 DFI AND 250 DFI M2 JET DRIVE - 250 DFI JET DRIVE (POWERHEAD)200/225/250 (3.0L) SEAPRO/MARATHON EFI - 3.0L EFI SEAPRO
115/135/150 DFI (2.5L) - V-135 DFI (2.5L)XR10 AND 10/SEAPRO/MARATHON 10/15/VIKING 10 - 10 MARATHON
XR10 AND 10/SEAPRO/MARATHON 10/15/VIKING 10 - XR1040 ITALY/45 BODENSEE 50/50 BIGFOOT 4-STROKE - 50 BIGFOOT (4-STROKE)
135/150/175/200 XR6/MAGNUM III/140 JET (CARB) - XR-640/50 (3 CYLINDER) 2-STROKE - 40 (3 CYL.)
20/25/JET 20 - 20/25 SEAPRO/MARATHON (2-STROKE) - 20 (2 CYL.)200 DFI M2 JET DRIVE - 200 DFI M2 JET DRIVE (POWERHEAD)
75/90 HP 65 JET (3 CYLINDER) - 75 (3 CYL.)225 AND 225 SEAPRO/MARATHON (3.0L CARB) - 225 SEAPRO (3.0L CARB)
75/90 HP 65 JET (3 CYLINDER) - 65 JET4/5HP 2-STROKE - 5 (2-STROKE)
XR/MAGNUM 10/SEAPRO/MARATHON 10/SEAPRO/MARATHON 15 - 15 MARATHON135/150/175/200 XR6/MAGNUM III/140 JET (CARB) - MAGNUM III
100/115/125 HP 80 JET (4 CYLINDER) - 100 (4 CYL.)55/60 JET 40/45 (3 CYLINDER) - 60 (3 CYL.) BIGFOOT
XR/MAGNUM 10/SEAPRO/MARATHON 10/SEAPRO/MARATHON 15 - 10 SEA PRO135/150/175/200 XR6/MAGNUM III/140 JET (CARB) - V-200
40/50 (3 CYLINDER) 2-STROKE - 50 (3 CYL.)3.3 HP - 3.3
25 HP (3 CYL.) LIGHTNING - 25 H.P. LIGHTNING (3 CYL.) (INTL. ONLY)20/25/JET 20 SEAPRO/MARATHON 15XD SUPER 15/JET 20) (2-STROKE) - 15 MARATHON XD
55/60 JET 40/45 (3 CYLINDER) - 55 (3 CYL.)200/225 (3.0L)(MECHANICAL) - 225 (DFI) 3.0L
115/125 HP 80 JET (4 CYLINDER) - 80 JET200/225/250 (3.0L) SEAPRO/MARATHON EFI - 250 (3.0L EFI)
225/250 EFI (3.0L) - 250 (3.0L EFI)10/15 SEAPRO/MARATHON-10/15 VIKING (2-STROKE) - 10 MARATHON
XR/MAGNUM 10/SEAPRO/MARATHON 10/SEAPRO/MARATHON 15 - 15 SEA PRO4/5 HP - 4 (2-STROKE)
XR/MAGNUM 10/SEAPRO/MARATHON 10/SEAPRO/MARATHON 15 - 10 MARATHON135/150 DFI (2.5L) - V-135 DFI (2.5L)
135/150/175 DFI (2.5L) - 110 Jet (2.5L)55/60/45 JET/60 BIGFOOT (2-STROKE) - 55 (3 CYL.)
55/60/45 JET/60 BIGFOOT (2-STROKE) - 60 (3 CYL.) BIGFOOT20/25/JET 20 SEAPRO/MARATHON 15XD SUPER 15/JET 20) (2-STROKE) - 20 (2 CYL.)
20/25/JET 20/SUPER 15/15XD/25 SEAPRO/MARATHON 2 CYLINDER - 15 MARATHON XD2/2.5/3.3HP 2-STROKE - 2.5
135/150/175/200 XR6/MAGNUM III/140 JET (CARB) - V-175115/125 HP 80 JET (4 CYLINDER) - 115 (4 CYL.)
135/150/175/200 XR6/MAGNUM III/140 JET (CARB) - 140 JET6/8/SAILMATE 9.9/SAILPOWER 15 HP - 6
135/140/150/200/XR6/MAGNUM III/140JET (2.5L)(CARB) - 140 JET2/2.5/3.5 4-STROKE - 2.5 (4-STROKE) Carb
6/8/SAILMATE 9.9/SAILPOWER 15 HP - 82/2.5/3.3 HP 2-STROKE - 2.5
200/225/250 (3.0L) SEAPRO/MARATHON EFI - 225 (3.0L EFI) SEAPRO200/225 DFI (3.0L)(DTS) - 225 (3.0L-DFI)(DTS)
75/90 HP 65 JET (3 CYLINDER) - 90 (3 CYL.)2/2.5/3.3 HP 2-STROKE - 3.3
200/225/250 (3.0L) SEAPRO/MARATHON EFI - 3.0L EFI MARATHON20/25/JET 20 SEAPRO/MARATHON 15XD SUPER 15/JET 20) (2-STROKE) - 25, 25 MARATHON, SUPER 15 (2 CYL.)
200/225 DFI (3.0L) - 225 (DFI) 3.0L2/2.5/3.3HP 2-STROKE - 2
55/60 JET 40/45 (3 CYLINDER) - 40 JET150 PRO XS (2.5L) - 150 Pro XS (2.5L)
40/50 HP JET 30 (3 CYL.) - 30 JET (3 CYL.)8/9.9/13.5/15 (2-STROKE) - 9.9
100/115/125 HP 80 JET (4 CYLINDER) - 80 JET20/25/JET 20/SUPER 15/15XD/25 SEAPRO/MARATHON 2 CYLINDER - 20 (2 CYL.)
135/140/150/200/XR6/MAGNUM III/140JET (2.5L)(CARB) - V-150135/140/150/200/XR6/MAGNUM III/140JET (2.5L)(CARB) - V-150
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