1. Engine Crankshafts Products
  2. sku: 19947523962992881
  3. NISSAN 12201AE003

NISSAN 12201AE003 Crankshaft Standard Gas 2.5

fits model: Altima. make: Nissan. year: 2002–2006.

12201ae003 Nissan Crankshaft Standard For 02-06 Altima 2.5 Gas

( Manufacturer Part Number: 12201AE003 ), ( Fitment Type: Direct Replacement ), ( Mounting Hardware Included: No ), ( Manufacturer Warranty: 30 Days ), ( Type: Crankshaft Standard ), ( Year: 2003 ), ( Engine Size: 2.5 ), ( Engine Code: Qr25de ), ( Valvetrain Iteration: Dohc ), ( Transmission Type: Automatic ), ( Location Id: Ff03 ), ( Vehicle Id: 16904 )

Review NISSAN Crankshaft Standard 2.5 Gas fits ALTIMA 2002–2006

The **Nissan 12201AE003 Crankshaft (Standard)** is a precision-engineered component designed exclusively for the **2002 2006 Nissan Altima with the 2.5L QR25DE gasoline engine**, ensuring optimal performance, durability, and reliability for your vehicle s powertrain. This high-quality crankshaft is forged from **high-strength alloy steel**, meticulously heat-treated to achieve an ideal balance of strength and flexibility, which helps resist fatigue and deformation under the demanding stresses of daily driving, towing, or spirited acceleration. The crankshaft features **five main journals** and **four counterweights**, precisely machined to Nissan s original specifications to maintain proper crankshaft balance, minimize vibration, and extend the lifespan of your engine s critical components, including the bearings and connecting rods. Engineered with **OEM-grade tolerances**, this replacement crankshaft is designed to fit seamlessly into the engine block, ensuring a snug and secure installation that prevents excessive play or misalignment key factors in preventing catastrophic engine failure. Whether you re restoring a classic Altima, upgrading a high-mileage engine, or addressing a worn-out crankshaft due to excessive wear or failure, this **direct-fit replacement** eliminates the need for custom machining or compromising performance. Built to withstand the rigors of modern driving conditions, from stop-and-go city traffic to highway cruising, this crankshaft is a dependable choice for mechanics and DIY enthusiasts alike, offering peace of mind with every mile driven.

**Pros and Cons of Buying a Nissan 12201AE003 Crankshaft (Standard for 2002-2006 Altima 2.5L Gas Engine)**

### **Pros**

1. **OEM Quality and Fitment** This is a genuine Nissan part, meaning it is designed specifically for your engine model. It should fit perfectly without modifications, reducing the risk of installation issues or premature wear.

2. **Reliability and Durability** Nissan s crankshafts are built to meet strict manufacturing standards, which generally translates to better longevity compared to aftermarket knockoffs. A high-quality crankshaft can help maintain engine performance and reduce the likelihood of catastrophic failure.

3. **Warranty Coverage** Purchasing from an authorized Nissan parts dealer or a reputable online retailer often includes a warranty (typically 12 months or more). This provides peace of mind in case of defects or premature failure.

4. **Compatibility with Aftermarket Upgrades** Since it s an OEM part, it is more likely to be compatible with other high-quality aftermarket components (e.g., pistons, rods, or bearings) without causing interference or fitment issues.

5. **Resale Value** If you ever decide to sell or trade in your Altima, having OEM parts can make the vehicle more appealing to buyers who prioritize reliability and authenticity.

6. **Reduced Risk of Voiding Warranty** If your Altima is still under factory warranty (unlikely for a 2002-2006 model, but worth noting), using OEM parts may help avoid warranty voidance issues that can arise with aftermarket components.

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### **Cons**

1. **Higher Cost** OEM parts are significantly more expensive than aftermarket alternatives. The Nissan 12201AE003 crankshaft will likely cost **$200 $400 **, depending on the source, whereas aftermarket options (e.g., from brands like **Crankshafts.com, JE, or Eagle**) may range from **$100 $200**.

2. **Longer Lead Times** OEM parts often have longer shipping times, especially if ordering directly from Nissan or a dealer. Aftermarket parts are usually available faster, which can be critical if you re dealing with an engine failure.

3. **Potential for Overkill** If your engine s failure was caused by a minor issue (e.g., oil starvation, timing belt failure, or carbon buildup), replacing just the crankshaft may not address the root cause. A full rebuild (including pistons, rods, and bearings) might be more cost-effective in some cases.

4. **Limited Customization** Unlike aftermarket cranks, which may offer performance-enhancing features (e.g., forged steel, counterweights for balance), the OEM crankshaft is a standard design. If you re looking to modify your engine for better power or longevity, aftermarket options might provide advantages.

5. **Dealer Markup** If purchasing from a Nissan dealership, you may face higher prices due to overhead costs. Buying from an online retailer (e.g., **RockAuto, PartsGeek, or a specialty crankshaft supplier**) often yields better deals.

6. **Potential for Counterfeit Parts** While rare, there is a risk of purchasing a fake OEM part, especially from untrusted sellers. Always verify the seller s reputation and check for authenticity (e.g., matching part numbers, serial numbers, or purchase from a certified dealer).

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### **Ending Conclusion**

The **Nissan 12201AE003 crankshaft** is a **high-quality, reliable choice** for restoring your 2002-2006 Altima s 2.5L engine, especially if you prioritize **fitment, warranty coverage, and long-term durability**. However, the **higher cost and longer lead times** make it less ideal for budget-conscious buyers or those needing a quick fix.

If your engine failure was due to **minor wear or neglect**, a **full rebuild with aftermarket components** (e.g., a **Crankshafts.com crankshaft JE pistons/rods**) could be a more cost-effective solution while still providing excellent performance. On the other hand, if you want **absolute confidence in fitment and longevity** (or if your engine has severe internal damage), the OEM crankshaft is the safest bet.

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### **Recommendation**

1. **If Budget is No Object and You Want OEM Reliability:**

- Purchase the **Nissan 12201AE003 crankshaft** from a **trusted online retailer** (e.g., **PartsGeek, RockAuto, or a Nissan-authorized supplier**) to avoid dealer markups.

- Pair it with **new bearings, seals, and a timing belt** to ensure a complete rebuild.

- Consider **extended warranty coverage** if available.

2. **If You Want a Balance of Cost and Quality:**

- Opt for a **high-quality aftermarket crankshaft** (e.g., **Crankshafts.com, Eagle, or JE**) paired with **forged pistons and rods** for better durability.

- This approach can save **$100 $200** while still providing excellent performance.

3. **If Your Engine Has Minor Wear:**

- Instead of replacing just the crankshaft, consider a **full engine rebuild** (including pistons, rods, and bearings) to address all potential failure points at once.

4. **Always Verify the Root Cause:**

- Before purchasing, **inspect the engine** for signs of **oil starvation, timing belt failure, or internal damage**. Addressing the cause (e.g., upgrading the oil pump or cooling system) will prevent future issues.

**Final Verdict:**

The **Nissan OEM crankshaft is the best choice for absolute reliability**, but **aftermarket options are viable for those on a tighter budget** who still want a long-lasting solution. Always **prioritize quality bearings, seals, and proper installation** to maximize the crankshaft s lifespan.

Details:

Nissan Sentry 2002 2006 2.5L. Please replace such items as required for proper installation. Nissan Altima 2002 2006 2.5L.

part #: 12201ae003 price

  • $199.95

specifications cranshafengin:

  • for models: Altima
  • for makes: Nissan
  • for years: 2002-2006
  • mpn: 12201ae003
  • fitment type: Direct Replacement
  • mounting hardware included: No
  • manufacturer warranty: 30 Days
  • type: Crankshaft Standard
  • year: 2003
  • engine size: 2.5
  • engine code: Qr25de
  • valvetrain iteration: Dohc
  • transmission type: Automatic
  • location id: Ff03
  • vehicle id: 16904

seller cranshafengin:

  • # reviews: 71944
  • rating: 99.8%
  • city: Denver, Colorado

general cranshafengin:

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

returns cranshafengin:

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

payments cranshafengin:

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

shipping cranshafengin:

  • transit: 3-7 Days
  • service: Standard
  • class: Standard
  • type: Fixed
  • cost: $0.00

offer cranshafengin:

  • options: Ship-to-home
  • quantity: 1
  • sold: 0
  • started: April 20, 2026
  • availability: In Stock
for models: altima, for makes: nissan, for years: 2002-2006, fitment type: direct replacement, mounting hardware included: no, manufacturer warranty: 30 days, type: crankshaft standard, year: 2003, engine size: 2.5, engine code: qr25de, valvetrain iteration: dohc, transmission type: automatic, location id: ff03, vehicle id: 16904,
manufacturer: nissan, category: auto parts > car truck parts accessories > engines engine parts > crankshafts, sku: 19947523962992881,
Nissan 12201AE003 Is Similar To:
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1 offer $199.95 USD
  • Used. Offer #1 priced at $199.95 + $0.00 shipping estimate = $199.95* total. Nissan Sentra 2002-2006 2.5L. Nissan Altima 2002-2006 2.5L.FREE SHIPPING

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