2018 GMC Sierra 1500 Wiper Blade Sizes
AI-generated reference. Always verify torque values, fluid capacities, intervals, and procedures against the manufacturer's service manual or OEM repair information before performing work. Repairius is not liable for damage from acting on this content without verification.
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Quick reference
| Position | Length (in) | Length (mm) | Attachment | OEM PN |
|---|---|---|---|---|
| Driver | 22" | 550 | J-hook | 22985397 |
| Passenger | 22" | 550 | J-hook | 22985397 |
Best aftermarket replacements
For the 2018 GMC Sierra 1500, you have a wide variety of excellent replacement wiper blade options. These models are all "beam" style blades, which offer better performance and longevity than conventional wipers.
- $$$ (Highest Price): PIAA Si-Tech, Bosch ICON
- $$ (Mid-Range): Rain-X Latitude, Trico Force
- $ (Value): Michelin Stealth
The Bosch ICON is a popular choice, known for its long life and excellent all-weather performance. The Rain-X Latitude blades are another fantastic option, especially praised for their water-repelling coating which helps improve visibility even when the wipers are off. For those on a budget who still want a quality beam blade, the Michelin Stealth offers great performance for the price.
Attachment style
The 2018 GMC Sierra 1500 uses a standard J-hook attachment for both the driver and passenger side wipers. This is the most common type of wiper arm, making replacement straightforward. The hook on the end of the wiper arm simply slides into the connector on the wiper blade and locks into place.
How to install
Replacing the wipers on your Sierra 1500 is a simple task that requires no tools and only a few minutes.
- Lift the wiper arm: Gently pull the wiper arm away from the windshield. It should stay in an upright position.
- Remove the old blade: Look for a small tab on the underside of the connector where the blade meets the arm. Press this tab and slide the old wiper blade down and off the J-hook.
- Install the new blade: Make sure your new wiper blade comes with the correct J-hook adapter installed. Slide the new blade onto the J-hook until it clicks securely into place.
- Lower the arm: Carefully lower the wiper arm back onto the windshield.
When to replace
Wiper blades are a wear item and should be replaced every 6 to 12 months for optimal safety and visibility. You should replace them sooner if you notice any of the following signs of wear:
- Streaking: The blade leaves streaks or bands of water on the windshield.
- Chattering: The blade makes a skipping or chattering sound as it moves across the glass.
- Squeaking: The wipers make a loud squeaking noise.
- Cracked rubber: The rubber on the blade is visibly cracked, torn, or has lost its flexibility.
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More specs for the 2018 GMC Sierra 1500
Oil Capacity & Filter
Capacity, weight, filter PN, drain plug torque, change interval.
Fluid Type Specs
Engine oil, coolant, ATF, diff, brake, PS, DEF — with OEM spec numbers.
Coolant Capacity & Type
Total system capacity, OEM coolant spec, flush interval, bleed tips.
Transmission Fluid & Service
Trans model, fluid spec, capacity, filter PN, service interval.
Torque Specifications
Lug nuts, drain plug, caliper, axle nut, plug, key fasteners.
Brake Pad & Rotor Specs
Pad PNs, rotor size, min thickness, caliper torque.
Tire Size & Pressure
OEM size, cold psi, bolt pattern, wheel size, TPMS.
Battery Size & Group
Group size, CCA, AGM/flooded, dimensions, reset note.
A/C Refrigerant & Oil
R-134a or R-1234yf, charge oz, PAG oil spec.
Bulb Sizes (Headlight, Tail, Fog)
Headlight, fog, tail, turn, reverse, interior.
Factory Maintenance Schedule
Service intervals by mileage, severe-duty notes, known issues.
Towing Capacity & Payload
Max tow, payload, GVWR/GCWR, hitch class by trim.
Fuse Box Diagram & Amperage
Fuse box locations, layout, amps, and what each fuse controls.
Serpentine Belt Routing & Length
Belt routing, length, rib count, OEM + aftermarket PNs.
Wheel Alignment Specifications
Camber, caster, toe ranges (front & rear), adjustability notes.
Paint Color Codes
All factory colors with paint codes, sticker location, touch-up tips.
Spark Plug Type & Gap
Plug PN, gap, torque, interval by engine.
Transmission & Axle Gear Ratios
Trans gear ratios, axle ratios, RPO codes, tow vs MPG impact.
Key Fob Programming
DIY programming steps, FCC ID, fob PN, battery, transponder.
Same spec — other model years
Maintenance & repair guides
2018 GMC Sierra 1500 Maintenance Schedule →
Available maintenance guidance; confirm the manufacturer schedule.
Repair planning references →
Plan the scope of work; detailed procedures need configuration-matched evidence.
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