Mevotech Supreme®Verified to fit 247 vehicles
| Vehicle | Trim | Engine |
|---|---|---|
| 1975 Oldsmobile Vista CruiserFront | — | V8 5.7L |
| 1975 Oldsmobile Vista CruiserFront | — | V8 7.5L |
| 1974 Oldsmobile Vista CruiserFront | — | V8 5.7L |
| 1974 Oldsmobile Vista CruiserFront | — | V8 7.5L |
| 1973 Oldsmobile Vista CruiserFront | — | V8 5.7L |
| 1973 Oldsmobile Vista CruiserFront | — | V8 7.5L |
| 1972 Buick GSFront | — | V8 5.7L |
| 1972 Buick GS 455Front | — | V8 7.5L |
| 1972 Buick SkylarkFront | — | V8 5.7L |
| 1972 Chevrolet ChevelleFront | — | L6 4.1L |
| 1972 Chevrolet ChevelleFront | — | V8 5.0L |
| 1972 Chevrolet ChevelleFront | — | V8 5.7L |
| 1972 Chevrolet ChevelleFront | — | V8 6.6L |
| 1972 Chevrolet ChevelleFront | — | V8 7.4L |
| 1972 Chevrolet El CaminoFront | — | L6 4.1L |
Interchange Checker
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WARNING: Handling passenger or off-highway motor vehicle parts can expose you to chemicals such as phthalates and lead, known to the State of California to cause cancer and reproductive harm. Service the vehicle in a well-ventilated area, wear gloves, and wash your hands. See www.P65Warnings.ca.gov/motor-vehicle-parts
Guaranteed fit — or free return
Guaranteed to fitFits your vehicle or we pay the return. Learn more
If a part we confirmed for your vehicle does not fit, we cover the return shipping and refund you in full. That is the fitment guarantee.
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Nobody likes buying a part that turns out to be wrong. So if it doesn't fit, send it back for a full refund at no cost to you — return shipping is on us — and we'll help you get the right one.
AutoBuffy 24-month guaranteeCovered on this part, unlimited miles. Learn more
Every part is covered for 24 months. Many brands add their own manufacturer warranty on top.
4.9/5 ratingFrom 19,069 verified customers. Learn more
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The brand behind your
Steering Idler Arm
Mevotech Supreme builds this Steering Idler Arm to original-equipment standards.
Brand-first. Fitment-obsessed.
We do not list every part on earth — just the brands automakers actually trust. And we use AI to double-check not just the fitment but the product details on every listing, because we hate buying the wrong part as much as you do.
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We're obsessed with fitment
Year, make, model, trim, engine — plus the fine print most sites skip — so it fits the first time.
Search any part number
The number off your old part, a competitor listing, or the dealer part — we cross it and confirm the match.
Front Steering Idler Arm | Mevotech Supreme MK5143 Fits Chevrolet Oldsmobile Pontiac
Guaranteed fit or free return
Front Steering Idler Arm | Mevotech Supreme MK5143 Fits Chevrolet Oldsmobile Pontiac
Checking fitment…
In stock· ships today
Fast shipping · Get it by Wed, Nov 4
Delivering to your area ·
Shipping calculated at checkout · Est. arrival Wed, Nov 4 to Wed, Nov 4
Ships To:Key Features
About This Steering Idler Arm
This Mevotech Supreme automotive component is engineered to meet or exceed OEM specifications for reliable performance and long service life.
Key Features
- Meets or exceeds OEM specifications
- Direct-fit replacement design
- Rigorously tested for durability
- Professional-grade construction
- Backed by manufacturer warranty
Signs This Part Needs Replacement
- •Unusual noises from the component area
- •Decreased vehicle performance
- •Warning lights on dashboard
- •Visible wear or damage
- •Failed vehicle inspection
Mevotech Supreme
Trusted Automotive Brand
Mevotech Supreme is a trusted manufacturer of quality automotive parts.
View all Mevotech Supreme productsInstallation Guide
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Frequently Asked Questions
The brand behind your
Steering Idler Arm
Mevotech Supreme builds this Steering Idler Arm to original-equipment standards.
The Mevotech Supreme Steering Idler Arm (MK5143) is a direct-fit replacement for 1964-1975 Chevrolet, Oldsmobile, Pontiac and 2 other makes. It cross-references 12308781, 541-112, IA5143PR, K5143, 19290300 and more. UPC 669719315876. In stock.
About This Product
Steering Idler Arm
The Mevotech Supreme Steering Idler Arm (MK5143) is a direct-fit replacement for 1964-1975 Chevrolet, Oldsmobile, Pontiac and 2 other makes. It cross-references 12308781, 541-112, IA5143PR, K5143, 19290300 and more. UPC 669719315876. In stock.
This Mevotech Supreme automotive component is engineered to meet or exceed OEM specifications for reliable performance and long service life.
Key Features
- Meets or exceeds OEM specifications
- Direct-fit replacement design
- Rigorously tested for durability
- Professional-grade construction
- Backed by manufacturer warranty
Signs This Part Needs Replacement
- Unusual noises from the component area
- Decreased vehicle performance
- Warning lights on dashboard
- Visible wear or damage
- Failed vehicle inspection
Brand-first. Fitment-obsessed.
We only sell brands automakers trust, and we double-check the fit on every listing.
Top curated brands only
The brands automakers put on the car.
Obsessed with fitment
Year, make, model, trim, engine, plus the fine print.
Search any part number
Your old part, a competitor, or the dealer #. We confirm the match.
Shop owner? Get BuffyPro business pricing
Fitment Obsessed
Every part checked against your exact year, make, model, trim, and engine.
Wrong Fit? On Us.
Free return shipping, no restocking fee — the fitment guarantee.
Brands OEMs Trust
The names automakers actually put on the car.
Millions of Parts, One Promise
If we say it fits, it fits.