HMMWV M998 Series Repair Parts and Special Tools List TM 9-2320-280-24P-1 Volume 1 – 1996 Edition

Description

HMMWV M998 Series Repair Parts and Special Tools List – TM 9-2320-280-24P-1 Volume 1

This is the official 1996 edition of the Repair Parts and Special Tools List (RPSTL) for the 1-1/4 ton, 4×4 HMMWV M998 series vehicles. Published in January 1996 and current as of 9 January 1996, this Volume 1 of 2 document is the definitive parts reference for unit, direct support, and general support maintenance of the entire M998 family. Whether you are ordering a single bracket or rebuilding a complete engine, this manual provides the National Stock Numbers, part numbers, SMR codes, and exploded-view illustrations needed to identify and requisition the correct components.

File Details

• Manual Type: Repair Parts and Special Tools List (RPSTL)
• Document Numbers: Army TM 9-2320-280-24P-1, Air Force TO 36A12-1A-3044-1, Marine Corps TM 2320-24P/8A
• Volume: 1 of 2
• Publication Date: January 1996 (current as of 9 January 1996)
• Language: English
• Page Count: Approximately 908 pages
• File Format: PDF
• Supersedes: TM 9-2320-280-20P and TM 9-2320-280-34P, both dated 22 August 1991

Chapters Covered

This volume organizes parts data into functional groups, each with its own exploded-view illustration and itemized parts list. The major coverage areas include:

• Group 01 – Engine: Engine assembly, mounting brackets, oil dipstick and tube, oil pan, oil pump, oil filter, crankcase depression regulator, air intake manifold, fuel pump, fuel injection pump and lines, fuel tank supply and return lines, fuel filler and vent lines, fuel filter assembly, glow plug, accelerator controls, exhaust system, cooling system, radiator, surge tank, fan assembly, water pump, thermostat, and generator/alternator assemblies.
• Group 03 – Fuel System: Fuel injection pump, fuel filter lines, supply and return lines, fuel tank assembly and mounting straps, fuel filler pipe, vent lines, and water separator.
• Group 04 – Exhaust System: Muffler, exhaust pipes, heat shields, catalytic converter, and related hardware.
• Group 05 – Cooling System: Radiator, surge tank, shroud, hoses, water pump, thermostat, fan assemblies, belts, tensioners, and idler pulleys.
• Group 06 – Electrical System: Starter motor, cable assemblies, instrument panel, circuit breakers, directional control unit, transmission control module, stoplight switch, heater/vent controls, composite lights, blackout lamps, sending units, horn, batteries, cables, bus bar, slave receptacle, umbilical power cable, and complete wiring harnesses for engine, transmission, body, hood, and STE/ICE.
• Group 07 – Transmission: Transmission and transfer control assembly, shift rod, shift controls, neutral start switch, modulator, torque converter, transmission assembly, planetary gear carrier, parking lock system, direct clutch, forward clutch, intermediate clutch, overrun/overdrive/fourth clutch, front and rear servos, governor assembly, control valve, accumulator, transmission oil pump, vent lines, and cooling lines.
• Group 08 – Transfer and Final Drive Assembly: Transfer assembly, transfer case assemblies (P/N 12340073, 5937387, 12447125), transfer oil cooler, transfer shift mechanisms, shift controls, and vent lines.
• Group 09 – Propeller Shafts: Front and rear propeller shaft assemblies with universal joints and center bearings.
• Group 10 – Front Axle: Front halfshaft assemblies, front axle differential, mounting brackets, vent lines, front knuckle and geared hub assembly, front control arms, and ball joints.
• Group 11 – Rear Axle: Rear halfshaft assemblies, rear axle differential, mounting brackets, vent lines, rear knuckle and geared hub assembly, rear control arms, and ball joints.
• Group 12 – Brakes: Parking brake hand lever, cables, caliper, rotor, service brake caliper, rotor, front and rear brake lines, proportioning valve, master cylinder, hydro-booster, and service brake pedal assembly.
• Group 13 – Wheels and Tracks: Wheel and runflat assemblies, rims, tires, beadlocks, and wheel balance weights.
• Group 14 – Steering: Steering column, wheel, intermediate shaft, steering linkage, idler arm, drag link, tie rod ends, power steering gear, power steering pump, support bracket, and hydraulic lines and fittings.
• Group 15 – Frame, Towing Attachments, Drawbars: Frame assembly, body mount brackets, transmission crossmember, air lift brackets, front upper control arm brackets, spring seats, front and rear suspension crossmembers, upper control arm brackets, front and rear bumpers, lifting shackles, towing pintle assembly, and rear radius rods.
• Group 16 – Springs and Shock Absorbers: Front and rear coil springs, shock absorbers, stabilizer bar, and connecting links.
• Group 18 – Body, Cab, Hood, and Hull Assembly: Body mounting components, body assembly components (left and right hand), body insulation, hood assembly, grille, ballistic grilles, splash shields, rear fixed doors, engine access cover, cargo bulkhead, interior net assemblies, rear doors for ambulance variants, bulkhead doors, NBC panel doors, litter tray stowage, rear covers, medical stowage covers, heater access doors, A/C and heater compartment panels, rear door seals, medical stowage doors, windshield assembly (fold-down and ballistic), interior tunnel insulation, floor insulation, floor mat covers, seats and belts (front and rear), commander’s seat, driver’s seat, protective padding on B-pillar, pioneer tool stowage tray, first aid kit and fire extinguisher brackets, TOW missile rack assemblies, MGS battery stowage rack, night sight and bore sight collimator stowage, M16/M203 rifle mount, machine gun and ammunition stowage, ammunition and water can stowage trays, litter straps and fasteners, oxygen bottle mounting, litter bumpers, litter frame plugs, 3-1/2 ton jack storage bracket, I.V. bag straps and hooks, web shelf net assembly, attendant seat stowage hardware, tailgate assembly, body armor panels, cargo shell door, cargo shell mounting components, cargo shell assemblies, weapon station hatch assembly, weapon station tray assembly, armament pintle and panel assemblies, turret support ring assembly, roof and mounting components, gunner’s platform assembly, crew door assemblies (front and rear, ballistic), TOW electrical components, S250 shelter mounting components, S250 shelter tailgate mounting components, litter assembly, litter tray extension assembly, upper litter tray assembly, litter skids and tracks, Red Cross marking rear door, rear step mounting hardware, rear step assembly, rear step latch and blackout switch mounting hardware, two and four litter ambulance body mounting hardware and seals, two and four litter body with Red Cross markings, heater duct and grille, heating director housing assembly, patient compartment heater and A/C ducts, hose assembly (blower to filter), NBC piping for heaters, NBC blower and filter mounting hardware, NBC heater and mounting hardware.
• Group 20 – Hoist, Winch, Capstan: Winch assembly, mounting hardware, winch control, storage box, and related parts.
• Group 22 – Body, Chassis, and Hull Accessory Items: Two man crew soft top enclosure, top assembly, rear curtain, door assemblies, bows, mounting components, troop area soft top enclosure, four man crew soft top enclosure, cargo area soft top enclosure, ambulance soft top enclosure, windshield wiper motor, wiper assembly, washer bottle, rearview mirrors, reflectors, heater assemblies, heater fuel lines, personnel heater assembly, antenna and intercom cables, heater blower assembly, air intake filter, multifuel heater assemblies, heater component brackets, burner assemblies, sun visor assembly, ambulance spreader assembly, data plates, engine shipping container, arctic kit components, deep water fording kit, troop seat kit, alternator kits (100 AMP and 200 AMP), communications kits, 81mm mortar kit, traversing bar kit, rearview mirror mounting kit, cargo barrier extension kit, slave receptacle kit, power steering oil cooler kit, brushguard kit, S250 shelter mounting kit, camouflage rack kit, prime mover kits for 105MM L119 howitzer, towed vulcan system kit, pintle extension kit, rear seat assembly kit, MANPADS kit, and 9,000 lb winch kit.

IMAGES PREVIEW

This technical manual is far more than a simple parts catalog. It is the authorized source for requisitioning, issuing, and disposing of spares, repair parts, and special tools for the HMMWV M998 series. Every line item entry includes an SMR code that tells you exactly how to obtain the item, who is authorized to install or repair it, and what disposition action to take when it becomes unserviceable. The NSN and part number indexes let you cross-reference from a known stock number to the exact figure and item number, while the figure and item number index lets you go the other direction. For anyone maintaining, restoring, or supporting these vehicles, this is the manual that turns a vague description like “that bracket near the alternator” into a precise part number and NSN that can actually be ordered.

What This HMMWV M998 Series RPSTL Enables You to Do

With this Repair Parts and Special Tools List, you can identify and order any component in the M998 series supply system. Whether you are performing routine unit-level maintenance or supporting a direct support or general support operation, the manual provides the SMR codes that tell you whether an item is stocked, made at unit level, assembled from components, or available only through salvage. You can look up any part by figure and item number, by NSN, or by part number, and you can see exactly where it fits on the exploded-view illustration. The exploded views show how assemblies go together, which is invaluable when you are disassembling a component for repair and need to know what seals, bearings, and hardware to replace. The coverage spans the entire vehicle: engine, fuel system, exhaust, cooling, electrical, transmission, transfer case, propeller shafts, front and rear axles, brakes, wheels, steering, frame, suspension, body, and all the special purpose kits and accessory items that turn a basic cargo truck into an ambulance, a TOW carrier, an armament carrier, or a shelter carrier.

Having the correct procedures and specifications matters because these vehicles are built to military standards, and using the wrong part or the wrong procedure can compromise safety, reliability, and mission readiness. This manual eliminates guesswork by providing the exact part numbers, NSNs, and SMR codes that the supply system recognizes. It covers both the 6.2 liter and 6.5 liter diesel engines, so you can use it across the full range of M998 series production. The serial number breakpoints are clearly indicated, so you know which parts apply to your specific vehicle.

This HMMWV M998 Series Repair Parts and Special Tools List is delivered as an instant PDF download. There is no shipping, no waiting for a physical book to arrive, and no risk of a lost or damaged package. You can access it on any device, print the pages you need for the shop, and search the digital file for the exact figure or part number you are looking for. Whether you are a military mechanic, a civilian contractor, a restoration enthusiast, or a fleet operator, this manual gives you the authoritative parts data you need to keep these vehicles running.