The GM Genuine Parts 12636175 VVT solenoid is presented as a direct-fit cam phaser control valve for select Chevrolet, Buick, GMC, and Cadillac engines, offering OE calibration, metal construction, and corrosion-resistant coatings. It measures approximately 2.5 inches in length with a standard electrical connector, fits specific 2.0–3.6L engines, and promises improved valve timing, throttle response, and fuel economy. How does it perform in real-world miles and varied conditions, and what are the exact installation caveats?
Key Takeaways
- Direct-fit GM Genuine Parts VVT solenoid (part 12636175) replaces original for Chevrolet, Buick, GMC, and Cadillac engines needing that OEM number.
- Metal housing with corrosion-resistant coating and factory calibration aims for reliable valve timing control and quick actuation.
- Dimensions 6.2 x 3.2 x 3.1 inches, 5.3 oz, with two 0.25-inch barb ports; verify housing clearance and connector fit.
- Owners report improved throttle feel, steady fuel efficiency, quiet operation, and low failure incidence when correctly installed.
- Available through OEM/ACDelco dealers and major retailers, backed by manufacturer warranty and typical 30-day return protection.
Product Overview and Key Features
The GM Genuine Parts 12636175 Variable Valve Timing (VVT) solenoid is a direct-fit replacement designed to control oil flow to cam phasers, adjusting camshaft timing for improved engine performance, drivability, and fuel efficiency.
It suits Chevrolet, Buick, GMC, and Cadillac models, metal construction, 6.2 x 3.2 x 3.1 inches, 5.3 ounces.
What are its key features? OE calibration, two 0.25-inch barb ports, direct-fit installation.
Practical considerations: measure housing clearance, confirm part number, expect OEM compatibility.
Who benefits? Drivers seeking reliable control, improved fuel economy, and liberation from recurring VVT issues.
Warranty available on request.
Design, Materials, and Engineering Quality
A durable, OEM-minded construction defines the GM Genuine Parts 12636175 VVT solenoid, combining metal housing, corrosion-resistant coating, and factory-calibrated internals to meet original equipment specifications.
It aims to free drivers from uncertainty through robust engineering, tested by GM for consistent valve timing control.
Practical details: metal body, 6.2 x 3.2 x 3.1 inches, 5.3 ounces, dual barb ports.
How reliable is it? Designed to resist corrosion, match OEM calibration, and endure typical service intervals.
Built to resist corrosion, retain OEM calibration, and reliably meet standard service intervals.
Considerations: fitment, installation torque, and oil cleanliness influence longevity.
- Confidence regained
- Precision restored
- Durability affirmed
- Freedom achieved
Technical Specifications and Compatibility
Technical specifications and compatibility are central to deciding whether the GM Genuine Parts 12636175 VVT solenoid fits a particular vehicle and service need.
The solenoid is metal, 6.2 x 3.2 x 3.1 inches, 5.3 ounces, with 0.25-inch barb inlet/outlet and two ports, meeting OE/OEM specs.
Who is it for? Chevrolet, Buick, GMC, and Cadillac models requiring model 12636175.
Does it match fitment? Verify OEM part cross-reference and engine application.
Practical considerations: connector type, mounting orientation, oil passage alignment, and corrosion protection.
Manufacturer: ACDelco; specification: matched OEM calibration.
Performance, Durability, and Customer Feedback
Because performance often hinges on precise oil control and long-term resistance to wear, this VVT solenoid’s real-world behavior is best evaluated across three lenses: responsiveness, durability, and owner feedback.
Because performance depends on precise oil control and wear resistance, judge this VVT solenoid by responsiveness, durability, and owner feedback
It delivers OEM-calibrated actuation, 0.25 inch inlet barb, 5.3 oz mass, and quick valve shifts under 2000 rpm changes.
Longevity is aided by corrosion coating, tested by GM engineers; expect service life comparable to OE units.
- Improved throttle feel
- Steady fuel efficiency
- Low failure incidence
- Quiet operation
Question: Will it free drivers from uncertainty? Yes, if installed correctly.
Warranty, Availability, and Purchasing Considerations
Several key factors influence a buyer’s confidence: warranty length and coverage, return policies, and parts availability.
The GM Genuine Parts 12636175 includes a manufacturer’s warranty upon request and Amazon’s 30-day return, practical safeguards for liberation-minded owners seeking control.
Where to buy? OEM channels, ACDelco dealers, and major retailers list the part; dimensions 6.2 x 3.2 x 3.1 inches, weight 5.3 ounces, inlet 0.25-inch barb, guarantee fit.
Questions: Is it genuine? Yes, GM/ACDelco OE spec. Should one keep receipts? Always.
Consider stock levels, shipping times, and warranty registration before purchase.
Frequently Asked Questions
Will This VVT Solenoid Fit Vehicles Outside GM Brands?
No — it generally won’t fit non‑GM vehicles; the solenoid is engineered to OEM GM specifications and calibrated for Chevrolet, Buick, GMC, or Cadillac applications. Seek compatible aftermarket or model‑specific parts for other brands.
Is There a Specific Torque Spec for Installation Bolts?
Yes — torque specifications vary by vehicle; typical VVT solenoid bolts often require 8–12 Nm (71–106 in·lb). With 4.6-star confidence, one should consult the specific OEM manual to guarantee safe, liberated repair accuracy.
Can a Failing Solenoid Trigger a Check Engine Light Code?
Yes; a failing VVT solenoid can trigger a check engine light and store codes related to camshaft timing, oil control solenoid faults, or cam/crank correlation, empowering the owner to seek repair and reclaim mechanical freedom.
Is Special Oil Required After Replacing the Solenoid?
“Better safe than sorry,” he notes: no special oil is required after solenoid replacement; standard manufacturer-recommended engine oil and viscosity restore freedom from worry, ensuring proper lubrication, performance, and longevity when specs are followed precisely.
Are There Common Installation Mistakes to Avoid?
Yes. One should avoid overtightening, neglecting gasket or O-ring replacement, failing to clean passages, misrouting electrical connectors, and skipping torque specs; installers seeking autonomy should document steps, assert control, and reclaim mechanical confidence.
Conclusion
In sum, the GM Genuine Parts 12636175 VVT solenoid stands as a precise, OE-calibrated replacement, offering durable metal construction, corrosion resistance, and direct-fit compatibility with specified Chevrolet, Buick, GMC, and Cadillac engines. It delivers measurable benefits — steadier fuel economy, improved throttle response — when installed correctly. Buyers should verify fitment with exact model years, torque specs, and sensor clearances, and note the manufacturer warranty plus Amazon return options before purchase. Is the fit right? Then it’s a practical upgrade.
