GMC Motorhome Parts & Service
1-800-752-7502
7:30 a.m. - 5:00 p.m. Pacific Time
Interior / Plumbing
Exhaust
Onan Generator Parts
Instructions

3.55/3.70/4.10
Final Drives



Engine / Ignition / Cooling


Digipanel


    Monitors:
    • Engine Temperature
    • Oil Pressure
    • Battery Voltage
    • Transmission Temperature
    Optional Gauges Include:
    • Engine Oil Temperature
    • Differential Temperature
    • Transmission Temperature at 2 points
    • RV Battery Voltage
    Features:
    • Very Low Power Consumption
    • Easily Installs in about 2 hours
    • Actual size: 1 1/8"H x 3 1/2"D x 7 1/2"W
    • Loud Audio Alarm
    • Visual Alarm
    • LED Bar Graph Readings
    • High Speed Response
    • Fully Calibrated for High Accuracy
    • Optional Engine Kill Feature also available
$210.00

MSD Engine Knock Alert - signals you to engine knock with a series of lights and an audible beep. It has a sensitivity adjustment that lets you tune it to the knocking characteristics of your coach. This device installs easily with only 3 wires to be connected.
$Call

Ignition Timing Control - The dash mounted ignition timing control is the perfect complement to the knock sensor because it allows you to retard or advance the ignition timing without leaving your seat.

Going over large hills is easy now. As you ascend the knock alert will indicate that the engine is knocking. You can simply reach over and retard the timing. After you reach the crest and descend the hill, you can advance your timing for more power and better fuel economy.

$Call

Rebuilt Distributor -
  • Rotor Phased Correctly to Cap
  • Polished Plate for Smooth Advance
  • New Housing Ground Terminal
  • Corrosion Resistant
  • Special Hi-Output Module
  • Maximum Hi-Output Coil
with rebuildable core
$265.00
Distributor Cap $28.00
Ignition Coil $46.00
Pertronix Ignition $79.00

Alternator Protection Cable - Protects against a high reverse voltage that can damage the alternator light and the Nichrome wire. Any GMC owner can install the APC by plugging it in between the alternator and the original two-conductor cable.
$25.00
Hi-Performance Spark Plug Wires - will withstand the extreme manifold and header heat indefinitely. They outperform the stock wires, are gas, oil and abrasion resistant, and will not get brittle.$115.00
Spark Plug Wires$26.00
Spark Plugs - (set of 4?)$3.30

Electronic Cruise Control - Prewired for the GMC Motorhome for easy installation. Including Rostra Actuator 250-1223, Control Unit 250-3032, Pulse Generator 250-4153 & GMC Motorhome Specific Installation Instructions
$325.00

Electric Fuel Pump Kit - Includes Electric Fuel Pump, Filter Assembly, Reverse Flow Valve and Hoses.
$186.00
Electric Fuel Pump Kit - Same as above but without Filter Assembly.$150.00
Electric Fuel Pump - Pump only.$89.00
Mechanical Fuel Pump - Pump only.$29.00
Fuel Filter$7.50
1 in. Fuel Filter Elbow$19.98

New Aluminum Intake Manifold - By Gary Rockwell. No need to raise the floor. Built-in exhaust bypass. Identical fit to original.
$600.00
Used Intake Manifold - $295.00

Rebuilt Carburetor with core - by Patterson
$390.00
Rebuilt Gasket - $20.00

Accelerator Cable - This is a direct replacement cable. No modification required.
$96.00

Aluminum Ram Air Scoop - When mounted high on the driver's side front grill provides extra milage and power by allowing cool air to reach the carburetor. Connect it with a dryer hose to the tube of the air cleaner. Aluminum.
$35.00
Fiberglass Ram Air Scoop - When mounted high on the driver's side front grill provides extra milage and power by allowing cool air to reach the carburetor. Connect it with a dryer hose to the tube of the air cleaner. Fiberglass.$38.00
Oil Breather (at valve cover) $28.00
Oil Pressure Sending Unit $25.00
Oil Dipstick - Complete.$130.00
Mechanical Oil Pressure Gauge $48.00
External Engine Oil Cooler - Heavy Duty.$97.00

Water Pump
$46.00
High Volume Aluminum Water Pump$110.00
RobertShaw High Flow Thermostat 180-195 w/o gasket$12.95
Thermostat Gasket$10.00

Heavy Duty AC Delco Fan Clutch - Cycles less and has a longer life.
$130.00

Full Fan Shroud - gives more coverage to the radiator than the original which only covered 70%.
Covers 100% of the radiator thus pulling more air through the radiator and shortens the duration of fan on time saving HP and fuel. 2 piece shroud.
$160.00
Full Fan Shroud - Same as above except one piece.$125.00

Heavy Duty Aluminum Radiator -
  • Reduced Weight
  • More readily dissipates heat
  • Less fan noise due to lower temperature
$798.00
Radiator Hose Kit - Upper & Lower. $58.00
Radiator Cap$17.00

Flexible Oil Cooler Lines - For 403 engine. The flex lines are braided stainless steel with teflon lining and machine crimped fittings.
$85.00
Flexible Oil Cooler Lines - For 455 engine. The flex lines are braided stainless steel with teflon lining and machine crimped fittings. $90.00
Rebuilt 403 Engine - Contact us for more information. $3000.00
Rebuilt 455 Engine - Contact us for more information. $3200.00
Alternator Belt$16.00
Alternator$105.00
Starter - Rebuilt$90.00