1. Engine Crankshafts Products
  2. sku: 20819467228104731
  3. CHEVROLET 12700236

CHEVROLET 12700236 Crankshaft Standard Gas 5.3

fits model: 1500, Silverado. make: Chevrolet. year: 1925–2016.

12700236 Chevrolet Crankshaft Standard For 14-25 Silverado 1500 5.3 Gas

( Manufacturer Part Number: 12700236 ), ( Fitment Type: Direct Replacement ), ( Engine Id: 17088 ), ( Mounting Hardware Included: No ), ( Transmission Type: Automatic ), ( Type: Crankshaft Standard ), ( Location Id: I906 ), ( Manufacturer Warranty: 30 Days ), ( Engine Size: 5.3 ), ( Valvetrain Iteration: Ohv )

Review CHEVROLET Crankshaft Standard 5.3 Gas fits SILVERADO 1500 1925–2016

The **Chevrolet 12700236 Crankshaft** is a precision-engineered, high-performance component designed exclusively for the **2014 2025 Chevrolet Silverado 1500 and GMC Sierra 1500** models equipped with the **5.3L Vortec V8 gas engine (L86/L87/L85/L84)**. Crafted from **forged 4340 steel**, this crankshaft is built to withstand the extreme demands of heavy-duty towing, hauling, and high-performance driving, ensuring durability, reliability, and optimal power delivery. The crankshaft features **seven main journals** and **five counterweights**, meticulously balanced to minimize vibration and maximize engine efficiency, even under the most strenuous conditions. Its **ground and polished surfaces** enhance oil flow and reduce friction, contributing to smoother operation and extended engine life. Whether you're upgrading for increased torque, restoring a classic Silverado, or replacing a worn-out original component, this crankshaft delivers the strength and precision required for a robust, high-output powertrain. Built to meet or exceed OEM specifications, it integrates seamlessly with the **5.3L engine s rod bearings, pistons, and connecting rods**, ensuring proper fitment and performance. Ideal for both stock and modified applications, this crankshaft is a critical upgrade for enthusiasts seeking enhanced power, longevity, and confidence in their truck s performance.

### **Pros and Cons of buying a Chevrolet 12700236 Crankshaft (Standard for 2014 2025 Silverado 1500 5.3L Gas)**

#### **Pros:**

1. **OEM Quality and Fit** This is a genuine Chevrolet replacement part, meaning it is designed to match the original specifications of your engine. It should fit perfectly without modifications, ensuring proper alignment and performance.

2. **Reliability and Durability** Chevrolet s 5.3L V8 engines are known for their robustness, and using an OEM crankshaft helps maintain the engine s structural integrity. A high-quality crankshaft reduces the risk of premature failure, especially in high-mileage or performance applications.

3. **Compatibility with Aftermarket Upgrades** Since this is a standard crankshaft, it is compatible with common aftermarket modifications, such as performance camshafts, headers, or forced induction (if properly supported). It won t interfere with bolt-on upgrades meant for the 5.3L engine.

4. **Warranty Coverage** If purchased directly from Chevrolet or an authorized dealer, this part may come with a warranty, providing peace of mind against defects in materials or workmanship.

5. **Prevents Engine Damage** A failing crankshaft can lead to catastrophic engine failure (e.g., rod knock, bearing seizure). Replacing it proactively can save thousands in repair costs and downtime.

6. **Mainstream Availability** As a common part for the 5.3L V8, it is widely stocked by dealerships, auto parts stores, and online retailers, making it easier to source than aftermarket alternatives.

7. **Supports Original Engine Performance** Unlike aftermarket cranks designed for forced induction, this part ensures the engine runs as intended by GM, maintaining stock power output and drivability.

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#### **Cons:**

1. **Higher Upfront Cost** OEM parts are typically more expensive than aftermarket alternatives. The 12700236 crankshaft may cost significantly more than a third-party equivalent, increasing the total repair expense.

2. **Longer Lead Times** Depending on the supplier, ordering an OEM crankshaft could take weeks, especially if it s not in stock. Aftermarket options often ship faster.

3. **Potential Overkill for Minor Issues** If the crankshaft failure is isolated to a specific component (e.g., a cracked rod journal or worn main bearings), replacing the entire crankshaft may be excessive. In such cases, a rebuild kit or targeted repair might suffice.

4. **Installation Complexity** Replacing a crankshaft requires disassembling the engine, which is labor-intensive and often best left to professionals. DIYers may face challenges with alignment, balancing, or torque specifications.

5. **No Performance Gains** Unlike aftermarket cranks designed for high-RPM or forced induction, this standard part won t improve power or torque. If your goal is performance, you d need to pair it with other upgrades.

6. **Depreciation Consideration** If you re restoring a high-mileage Silverado, an OEM crankshaft may not offer long-term value compared to aftermarket options that could extend the engine s life further.

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### **Ending Conclusion:**

The **Chevrolet 12700236 crankshaft** is an excellent choice if you prioritize **reliability, OEM compatibility, and long-term durability** for your 5.3L V8 engine. It is the safest option to prevent catastrophic failure and ensures the engine operates as intended by GM. However, the **higher cost and installation complexity** make it less ideal for budget-conscious or minor repairs.

For most **high-mileage, daily-driven Silverados**, this part is justified, especially if the engine has shown signs of crankshaft wear (e.g., rod knock, oil consumption). If you re on a tight budget or the engine has other issues (e.g., worn bearings, rod damage), a **rebuild kit or aftermarket crankshaft** (from reputable brands like **Crankshafts.com, JE, or Scat**) could be a more cost-effective alternative though with slightly less warranty coverage.

### **Recommendation:** - **Buy the OEM crankshaft (12700236) if:**

- You want the most reliable, long-lasting solution.

- Your engine has significant crankshaft wear or damage.

- You re restoring a Silverado and want to maintain stock performance.

- You re comfortable with the higher cost and professional installation.

- **Consider an aftermarket alternative if:**

- You re working with a limited budget and the engine has minor issues.

- You re willing to research high-quality aftermarket brands (e.g., **Scat 4340 steel cranks**).

- You plan to pair the crank with other performance upgrades (e.g., forged internals, headers).

**Final Verdict:** For most owners, the **OEM crankshaft is the best choice** for peace of mind and long-term reliability, especially in a workhorse like the 5.3L V8. Just ensure it s installed by a trusted mechanic to avoid mistakes during reassembly.

Details:

Chevrolet Tahoe 2015 2025 5.3L. Chevrolet Silverado 1500 2014 2025 5.3L. Chevrolet Suburban 2015 2025 5.3L. Chevrolet Silverado 1500 LTD 2022 - 2022 5.3L.

Please replace such items as required for proper installation.

part #: 12700236 price

  • $249.95

specifications cranshafengin:

  • for models: 1500, Silverado
  • for makes: Chevrolet
  • for years: 1925-2016
  • mpn: 12700236
  • fitment type: Direct Replacement
  • engine id: 17088
  • mounting hardware included: No
  • transmission type: Automatic
  • type: Crankshaft Standard
  • location id: I906
  • manufacturer warranty: 30 Days
  • engine size: 5.3
  • valvetrain iteration: Ohv

offer cranshafengin:

  • quantity: 1
  • options: Ship-to-home
  • started: June 10, 2026
  • sold: 0
  • availability: In Stock

seller cranshafengin:

  • rating: 99.8%
  • # reviews: 74221
  • city: Denver, Colorado

general cranshafengin:

  • Car Truck Parts Accessories > Engines Engine Parts > Crankshafts
  • condition: Used

payments cranshafengin:

  • other
  • wallet: Apple-pay
  • credit card: Mastercard

returns cranshafengin:

  • policy: Returns Accepted
  • paid by: Buyer
  • time: 30 Days

shipping cranshafengin:

  • service: Standard
  • transit: 2-6 Days
  • type: Fixed
  • cost: $0.00
  • class: Standard
for models: 1500, silverado, for makes: chevrolet, for years: 1925-2016, fitment type: direct replacement, engine id: 17088, mounting hardware included: no, transmission type: automatic, type: crankshaft standard, location id: i906, manufacturer warranty: 30 days, engine size: 5.3, valvetrain iteration: ohv,
manufacturer: chevrolet, category: auto parts > car truck parts accessories > engines engine parts > crankshafts, sku: 20819467228104731,
Chevrolet 12700236 Is Similar To:
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2 offers $249.95–$249.95 USD
  • Used. Offer #1 priced at $249.95 + $0.00 shipping estimate = $249.95* total. Chevrolet Tahoe 2015-2025 5.3L. Chevrolet Silverado LTD 2022-2022 5.3L.FREE SHIPPING
  • Used. Offer #2 priced at $249.95 + $0.00 shipping estimate = $249.95* total. FREE SHIPPING

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