HOLIDAY HOURS:

Our offices are closed on Monday, September 1st in observance of Labor Day.
All orders placed this weekend and on Monday, September 1st will be processed when we open on Tuesday, September 2nd.

HAVE FUN ON THE WATER, HAPPY LABOR DAY and GOD BLESS YOU!

PLEASE NOTE - Some products are not immediately available. If your order will be delayed, we will e-mail you or call you and let you know.
E-MAIL US HERE about availability and we will respond quickly! We ship same day if your order was placed by 1:00 PM EST during normal business hours BASED ON AVAILABILITY.
NEXT DAY SHIPPING NOTE - Please see our Shipping Policy SATURDAY OR SUNDAY DELIVERY IS NOT AN OPTION.

TUNE UP PARTS

Discounted Marine Spring Tune Up Parts

Don't get stuck on the dock. My Inboard Marine has a large supply of boat engine tune up parts and supplies! Browse through our departments and find your boat tune up parts today!

 Click HERE to go to the Spring  MAINTENANCE Page.


Wire Set Spark Plug And Coil PCM-Crusader 5.7L CAT Original PCM RK120023
18%
$66.48 $81.11
OEM PCM Spark Plug Wire Set HVS For HVS For Catalyst Exhaust Ignitions RK120023 HVS Spark Plug Wire Set for PCM  5.7L Catalyst Exhaust EX343 Engines...
Repair Kit Complete Raw Water Pumps Original Quicksilver QS-46-807151A14
7%
$129.99 $139.99
RIGINAL REPAIR KIT FOR MERCRUISER ORIGINAL STYLE PLASTIC BODY PUMPS  QUICKSILVER BRAND We also have SIERRA - CLICK HERE Impeller kit with 1 piece pump...
Seal Lip Seal For Sherwood Raw Water Pumps OEM SHER-18652
11%
$16.85 $18.95
Lip Seal for the Crank Driven  Sherwood Pump OEM Fits PCM GM Sherwood P-105 & Sherwood P-151 pumps  If your pump is leaking, replace your...
Rotor Delco EST V8 Rotor Original Factory PCM/Crusader R103008
20%
$11.20 $14.05
Original OEM-PCM-Crusader Rotor for GM V8 marine engines with Delco EST module-in-cap electronic distributors. OEM Crusader Replaces Mercury 808484, 808484 1, 898253010, 8M6001253 Replaces Crusader 38071,...
Distributor Cap Delco V8 Original Factory PCM/Crusader # RA108006
10%
$34.07 $37.98
Original OEM - PCM - Crusader Distributor Cap for GM V8 marine engines with Delco EST electronic distributors OEM Crusader Delco EST V8 distributor cap...
Belt PCM Alternator V-Belt GM 5.7 - 5.0 Years 2000-2003 Only R066008 Belt PCM Alternator V-Belt GM 5.7 - 5.0 Years 2000-2003 Only R066008
17%
$12.49 $14.99
PCM  GM Alternator V-Belt  Also used for the Ford Raw Water Pump Belt (sold in Ford belt set) PCM Alternator V-Belt Fits early 5.7 Excalibur...
Belt Indmar Serpentine LTR Engine with Serial Numbers IC-972970 And Below OEM 72-5026
19%
$65.00 $79.85
This is an Original Indmar Belt 72-5026 Indmar serpentine alternator belt 48 3/4 in. overall length 13/16 in. wide Original Indmar Replace belts when cracked...
OMC 21 Micron Fuel Water Separator Filter
1%
$15.95 $16.19
Replacement spin-on fuel filter with OMC threads removes contaminants & water from incoming fuel. OMC thread fuel filter Protects marine engines by filtering water, dust,...
Tune Up Kit - Delco HVS V8 Tri-Pak Tune-Up Kit United Marine UIW-1-217
34%
$137.00 $206.91
Delco HVS V8 Tri-Pak Tune-Up Kit Kit fits Mercruiser V8 engines with Delco HVS ignition systems Kit includes MEGA-MAG 8mm SSC silicone spark plug wire...
Fuel Filter Quicksilver 35-802893Q01
$20.99
Fuel Filter - Quicksilver® is temporarily out of stock on this item with a long backorder. 18-7844 - CLICK HERE FOR CORRECT SIERRA REPLACEMENT Fuel/Water...
Comprehensive kit includes everything needed to tune-up Vortec Mercruiser 5.7L engines with Delco EST electronic distributors.
11%
$180.00 $201.67
Comprehensive kit includes everything needed to tune-up Vortec Mercruiser 5.7L engines with Delco EST electronic distributors. For Mercruiser 5.7 liter 350 cu. in. EFI engines...
Conversion Kit Pertronix Ignitor II Clip or Screw Down Caps IG-1581LS
20%
$199.05 $249.65
PerTronix "Ignitor II" Electronic Ignition conversion kit for EITHER the Prestolite clip/screw down caps. Fits both screw down and clip down caps! Ignition conversion kit...
CONVERSION KIT PERTRONIX IGNITER PRESTOLITE CLIP DOWN KIT IG-1581
10%
$144.05 $160.35
Pertronix Ignitor Electronic Ignition Conversion Kit 1581 NEW NUMBER IS IG-1581LS - CLICK HERE Upgrades conventional Prestolite V8 clip down cap distributors to breakerless electronic...
Tune Up Kit 302-351 (86 & Prior) Prestolite - Mallory Clip Down Original PCM Item # RP173024 Tune Up Kit 302-351 (86 & Prior) Prestolite - Mallory Clip Down Original PCM Item # RP173024
20%
$71.27 $88.95
1986 & PRIOR V8 CLIP DOWN CAP ORIGINAL PCM Not Aftermarket Breaker Point Standard Ignition Tune Up Kit Includes Cap, Rotor, Points and Condenser. CLIP DOWN TYPE CAPClips...
Gasket Set Thermostat Housing Service Kit Mercruiser GM OEM 18-1989K
15%
$16.05 $18.79
Thermostat housing service kit for late model Mercruiser engines. Includes all gaskets & thermostat sleeve Sierra thermostat service kit Includes gaskets 18-2917, 18-2844 & 18-2554 Service...
Gasket Pump Cover For Sherwood Raw Water Pump OEM 10103
9%
$3.20 $3.51
Pump Cover Gasket Sherwood 10103 Seals between the cover plate and the housing of various Sherwood seawater pumps. Fits Older Style Sherwood Interceptor pumps! Sherwood...
Impeller Kit Double Flat Shaft Mercruiser Bravo Sierra Brand 18-3016-1
11%
$34.00 $37.99
IMPELLER KIT This impeller has a flat on each side of the shaft. Includes Seal! Aftermarket direct replacement impeller for Mercruiser Bravo marine engines with...
Fuel Pump FCC Fuel Control Cell 5.0 & 5.7 OEM RA080034 Fuel Pump FCC Fuel Control Cell 5.0 & 5.7 OEM RA080034
7%
$924.00 $995.44
OEM modular FCC fuel control cell assembly with built in low pressure pump fits Crusader 5.0L & 5.7L MPI marine engines and replaces the earlier...
Belt V-Belt Volvo Penta Carbureted Engine With 2 Belts BRP-0978547
11%
$46.00 $51.48
BRP Brand Volvo Penta V-Belt  CLICK HERE FOR VOLVO BRAND Fits Volvo Engine Models V-Belt Replaces VOLVO-978547 BRP-0978547 - VOLVO 3852464
Aluminum Anti-Siphon Valve 1/4" NPT Thread X 3/8' I.D. Hose BarbAluminum Anti-Siphon Valve 1/4" NPT Thread X 3/8' I.D. Hose Barb Moeller
23%
$13.00 $16.99
Aluminum Anti-Siphon Valve 1/4" NPT Thread X 3/8' I.D. Hose Barb Moeller Marine MO-033801-10 Coast Guard industry standards require anti-siphon protection on all gasoline powered...
Spark Plug Set AC Delco Iridium AC-41-993 Set of 8 AC Delco Brand ACD-41-993 Replaces PCM RP030011 Spark Plug Set AC Delco Iridium AC-41-993 Set of 8 AC Delco Brand ACD-41-993 Replaces PCM RP030011
18%
$115.00 $140.56
AC Delco 41-993 Spark Plug Replaces PCM RP030011 Includes 8 Plugs AC Delco Iridium Spark Plug Replaces AC Delco 41-932 Replaces Crusader RP030011 Replaces NGK PTR4G-15...
Fuel Water Separator Filter 10 Micron Short Sierra 18-7944
11%
$9.30 $10.49
FUEL WATER SEPARATOR FILTER SIERRA 18-7944 Replacement spin-on fuel filter fits many Mercury & Mercruiser marine engines to remove contaminants & water from incoming fuel. Many...
Belt Serpentine 5.7L With Johnson Crank Driven Raw Water Pump PCM Crusader R066039 Belt Serpentine 5.7L With Johnson Crank Driven Raw Water Pump PCM Crusader R066039
25%
$42.00 $55.99
PCM Crusader Serpentine Drive Belt With Modular Raw Water Pump- OEM R066039 BELT,SERPENTINE DRIVE 5.7L PCM/Crusader 5.7 engines only These belts were used around 2016...
Impeller Pump Bronze Oberdorfer Pumps OEM # N202M-908
0%
Sold Out
Flexible impeller raw water pump directly replaces Westerbeke 42175 & Universal 302648 pumps on Universal M3-20, M3-20B, M25XP, M25XPB, M35, M35AC, M35B, M35BC, M40B, M4-30...
Spud For Remote Oil Filter Original Indmar 601021
19%
$3.45 $4.25
ORIGINAL INDMAR REMOTE OIL FILTER SPUD 60-1021 For the Remote Oil Filter Locator, order part number 53-1091E HERE.
BARB THERMOSTAT HOUSING HOSE BARB BRASS STRAIGHT FITTING 1/2" INCH NPT X 1" INCH  OEM 50-512-017
9%
$17.95 $19.75
1/2" NPT X 1" BRASS Straight Fitting Straight 1/2 inch by 1 inch fitting made of brass! Used on Thermostat Housings May need to order 2 -...
BELT ALTERNATOR AND CIRCULATING PUMP BELT PCM 96307
5%
$62.50 $66.11
PCM - CRUSADER 96307 Alternator And Circulating Pump Belt
DISTRIBUTOR CAP MALLORY V8 FLAT CAP
23%
$65.00 $84.69
Crab style cap fits V8 marine engines with Mallory flat cap distributors. Used with 18-5411 Rotor - Click HERE for ROTOR Mallory V8 Flat Distributor...
REPAIR KIT JOHNSON OEM JP-09-45825 FOR JOHNSON MINOR SERVICE KIT FOR F6B9 PUMP
18%
$68.25 $82.93
Johnson Pump 09-45825 Crankshaft Type Water Pump Service Kit Johnson Pump 09-45825 Crankshaft Type Water Pump Service Kit Minor Service Kit Used on pump type...
Spark Plug Set PCM - Indmar - 8.1L - 6.0L Set Of 8 Original PCM RP030009 Spark Plug Set PCM - Indmar - 8.1L - 6.0L Set Of 8 Original PCM RP030009
23%
$108.00 $141.14
Original Crusader - PCM Platinum 8.1L Spark Plug Set PCM - RP030009 AC Delco 41-983 Brand OEM From PCM Includes 8 Plugs 8.1L & MP 6.0L Plug...
Spark Plug Set NGK-5599 Laser Iridium ITR4A15 Set Of 8 Replaces PCM RP030010 Spark Plug Set NGK-5599 Laser Iridium ITR4A15 Set Of 8 Replaces PCM RP030010
16%
$101.89 $121.52
NGK-5599 LASER IRIDIUM ITR4A15 Spark Plug Set Replaces PCM RP030010 Includes 8 Plugs Premium NGK spark plugs are known for their reliable performance and superior anti-fouling...
Wire Set Spark Plug And Coil 8MM GM-Ford OEM PCM RK120017
8%
$69.50 $75.71
Original Crusader 8mm ignition wire set Fits: GM 350 Ford 351 Ford 302 5.8 5.7 5.0 OEM PCM Fits Prestolite or Mallory 90 Degree Plug/Cap...
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