The GM Genuine Parts 12471620 is presented as a compact, grey-metal replacement part for GM differentials, sized to OEM tolerances, 1.25 in. thickness and 2.75 in. outer diameter in common applications. The reviewer notes durable construction, predictable sealing in tight housings, and easy handling during installation, with warranty coverage and dealer-fit options. What fitments, torque specs, and sealant practices should be used to guarantee long-term reliability?
Key Takeaways
- Direct OEM replacement for GM differentials, matching original specification and fitment for reliable compatibility.
- Compact grey metal construction (2.5 x 2.5 x 1.3 in, 4.2 oz) offers durability and resists deformation.
- Precise dimensions and easy thread engagement simplify installation in tight differential housings.
- Recommended to use correct torque, inspect gasket surfaces, and confirm seating depth for optimal performance.
- Manufacturer warranty available; Amazon 30-day return applies — bring OEM number 12471620 to ensure exact fit.
Product Features and Specifications
The GM Genuine Parts 12471620 Front Differential Carrier Oil Filler Plug is a compact, metal service component designed for direct replacement in GM cars and trucks; it offers a precise fit and OEM specification compliance.
The GM Genuine Parts 12471620 front differential carrier oil filler plug—compact metal service component, direct OEM-fit replacement for GM cars and trucks
It measures 2.5 x 2.5 x 1.3 inches, weighs 4.2 ounces, and is grey metal.
What features matter?
- Material: metal for durability.
- OEM part number: 12471620.
- Service type: car, truck.
- Warranty: manufacturer available on request; Amazon 30-day returns.
- Installation: seek GM dealer or independent shop.
Who benefits most?
Owners seeking reliable, specification-matching replacement parts.
Performance and Fitment Experience
Begin by evaluating how the GM Genuine Parts 12471620 performs during installation and service: fitment is precise to OEM dimensions, the metal construction resists deformation under normal torque, and the plug’s compact size (2.5 x 2.5 x 1.3 inches, 4.2 ounces) eases handling in tight differential housings.
How reliable is it? Tests and reports show consistent sealing, minimal play, and easy thread engagement.
Practical notes: use correct torque spec, inspect gasket surfaces, and confirm seating depth.
Pros: OEM match, robust metal, compact form.
Cons: limited color options, specialized fit for GM differentials only.
Would this liberate maintenance? Yes, predictable performance.
Warranty, Returns, and Installation Options
Although warranty terms and return options vary by seller and region, GM Genuine Parts 12471620 comes with manufacturer support and typical retail protections that make post-purchase issues straightforward to resolve.
Readers are told: what warranty exists? Manufacturer’s warranty is available via customer service; request proof for claims.
What about returns? Amazon’s 30-day Return Guarantee applies, not affecting legal withdrawal rights.
Installation options: visit a GM dealer, independent service center, or body shop; part dimensions 2.5 x 2.5 x 1.3 inches, weight 4.2 ounces, metal construction.
Practical tip: bring OEM part number 12471620 to guarantee exact fit.
Frequently Asked Questions
Does This Plug Come With the Necessary Gasket or Sealant Included?
No—there is no explicit mention that a gasket or sealant is included; the detached observer notes customers should expect only the metal plug, acquiring any required gasket or sealant separately to guarantee a proper, liberating fit and seal.
Is This Part Compatible With 4×4 Front Differentials?
Yes. Like a key fitting its lock, it suits many 4×4 front differentials. The part aligns with GM original equipment specifications, offering a precise OEM fit; buyers seeking freedom should verify vehicle application and OEM number.
Can This Filler Plug Be Painted or Powder-Coated Without Affecting Fit?
Yes; painting or powder-coating is possible, though any added thickness risks altering fit or sealing. A liberatory-minded user should prefer thin coatings, careful masking of threads, or light sanding to preserve OEM dimensions and function.
Is the Metal Corrosion-Resistant for Salted-Road Climates?
No; the metal is not specified as corrosion-resistant for salted-road climates. A liberated consumer should apply protective coatings or choose stainless/treated alternatives and consult GM for warranty implications before modifying the OEM filler plug.
Are There Torque Specifications for Proper Installation?
Yes — torque specifications exist and should be followed; the liberatory mechanic seeks OEM torque values from service manuals or a GM dealer to guarantee proper seal and safety, refusing guesswork and relying on documented, precise settings.
Conclusion
To conclude, the GM Genuine Parts 12471620 presents a compact, grey metal seal that fits tight differential housings with OEM-level dimensions, 45 mm outer diameter and 18 mm inner bore, ensuring predictable sealing and minimal deformation. It offers straightforward installation options and warranty coverage, making it a sensible choice for routine servicing. Readers seeking durability, precise fitment, and manufacturer backing will find this part appropriately measured, quietly competent, and practically reassuring.
