LEXUS OE 90311A0035 Rear Engine Crankshaft Seal

( Brand: Lexus Oe ), ( Manufacturer Part Number: 90311A0035 ), ( Part Type: Seal Engine Crankshaft ), ( Product Type: Engine ), ( Fitment Type: Direct Replacement ), ( Compatible Model S : Tx500h, Tx350, Ux200, Rx500h, Rx350h, Rx350, Rx450h, Nx350 ), ( Product Subtype: Crankshafts ), ( Department: Oem )

Review LEXUS OE Rear Engine Crankshaft Seal fits TX500H 2024–2026

The **Lexus 90311-A0035** is a precision-engineered **rear engine crankshaft seal** specifically designed for the **2024 2026 Lexus TX 500h**, a hybrid luxury SUV that blends cutting-edge hybrid technology with the refined performance and elegance synonymous with Lexus. This high-quality seal is crafted to ensure optimal sealing performance within the rear engine compartment, where the hybrid electric motor and internal combustion engine interface. Engineered from durable **nitrile rubber with a reinforced fiberglass core**, this seal is built to withstand the demanding conditions of hybrid powertrain operation, including exposure to high temperatures, lubricants, and dynamic mechanical stress. Its **precision-molded design** guarantees a perfect fit against the crankshaft, preventing oil leaks, reducing friction, and maintaining proper lubrication within the engine bay critical factors for preserving the longevity and efficiency of the hybrid system. The seal s **smooth, resilient lip construction** minimizes wear while adapting to minor misalignments, ensuring reliable operation even under varying load conditions. Whether installed during routine maintenance or as part of a hybrid-specific service, the **Lexus 90311-A0035** is a critical component that contributes to the seamless performance and durability of the TX 500h s advanced powertrain, reinforcing Lexus s commitment to hybrid innovation and engineering excellence.

### **Pros and Cons of buying a Lexus 90311A0035 (TX500H 2024 2026 Rear Engine Crankshaft Seal)**

1. **OEM Quality** This part is a genuine Lexus factory-sealed component, ensuring proper fit, durability, and compatibility with the TX500H s hybrid powertrain. OEM parts are designed to meet Lexus s strict engineering standards, reducing the risk of premature failure or improper sealing.

2. **Reliability and Longevity** Lexus is known for long-lasting components, and an OEM crankshaft seal is engineered to withstand the hybrid system s thermal and mechanical stresses over time. This minimizes the chance of leaks, which can damage the engine or transmission.

3. **Warranty Coverage** Purchasing directly from Lexus or an authorized dealer may include warranty protection, providing peace of mind against defects. Some third-party sellers may also offer limited warranties, though these vary by vendor.

4. **Prevents Costly Damage** A failing crankshaft seal can lead to oil leaks, which may contaminate the hybrid battery or transmission fluid, resulting in expensive repairs. Replacing it proactively avoids secondary damage.

5. **Ease of Installation** As an OEM part, it is designed to fit seamlessly with the TX500H s engine bay layout, reducing the risk of installation errors that could occur with aftermarket alternatives.

6. **Maintenance Alignment with Lexus Standards** Using OEM parts aligns with Lexus s recommended service procedures, which can be important if you plan to sell the vehicle later or if you rely on Lexus-certified technicians for future work.

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1. **Higher Cost** OEM parts are significantly more expensive than aftermarket alternatives. The Lexus 90311A0035 seal will cost more upfront, which may be a deterrent for budget-conscious buyers or DIY enthusiasts.

2. **Limited Availability** While Lexus parts are widely available through dealers and online retailers, sourcing may take longer than aftermarket options, especially if you need the part urgently. Some third-party sellers may also have inconsistent stock.

3. **Potential for Overkill** If the seal failure is isolated and not part of a broader engine or hybrid system issue, an OEM replacement might be more expensive than necessary. In such cases, a high-quality aftermarket seal could suffice without sacrificing reliability.

4. **Installation Complexity** Replacing a crankshaft seal, especially in a hybrid vehicle like the TX500H, requires precision and may involve draining fluids or disconnecting hybrid components. While not overly difficult, it demands careful execution to avoid mistakes.

5. **Resale Value Consideration** If you plan to sell the vehicle later, some buyers may prefer aftermarket parts for cost savings. However, OEM parts can also appeal to buyers who prioritize long-term reliability, so this is situational.

6. **Potential for Counterfeit Parts** When purchasing from non-authorized sellers (e.g., eBay, Amazon, or unverified online marketplaces), there is a risk of receiving counterfeit or substandard OEM parts. Always verify the seller s authenticity.

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The **Lexus 90311A0035 OEM crankshaft seal** is the best choice for owners of the **2024 2026 TX500H** who prioritize **reliability, longevity, and compatibility** with their vehicle. While it comes at a higher cost, the benefits such as reduced risk of leaks, warranty coverage, and alignment with Lexus s engineering standards make it the safest option for critical hybrid powertrain components.

However, if budget is a major concern and you are confident in selecting a **high-quality aftermarket alternative** (e.g., from reputable brands like Fel-Pro, Sealed Power, or ATE), you could save money without compromising too much on performance. That said, aftermarket seals may not carry the same level of assurance or warranty protection.

For most **TX500H owners**, the **OEM part is the recommended choice**, especially if the vehicle is under warranty or if you plan to keep it long-term. If purchasing from a third party, ensure the seller is authorized or has a strong reputation to avoid counterfeit parts.

**Buy the Lexus 90311A0035 OEM crankshaft seal** from an **authorized Lexus dealer or a trusted online retailer** (e.g., RockAuto, PartsGeek, or Lexus s official parts store). If cost is a limiting factor, verify the aftermarket seal s compatibility and brand reputation before opting for an alternative. Always prioritize quality over price when dealing with critical hybrid components.

Details:

Replaces Original OE Part #: 90311A0035. Result of high-quality craftsmanship and state-of-the-art technology. Rear Engine Crankshaft Seal 90311A0035 by Lexus OE. Made to strict quality standards and exact specs for genuine quality, fit, function.

Lexus OE parts are crafted with the utmost care and attention to detail using advanced manufacturing techniques ensure you get same quality, fit, reliability that you ve come rely on for years. Features: Authentic OE replacement for your worn-out or damaged factory part. Designed to precisely match the fitment of your Lexus year model.

part #: 90311a0035 prices

• $21.83-$32.40

specifications cranshafengin:

• for makes: Lexus
• for years: 2024-2026
• brand: Lexus Oe
• mpn: 90311a0035
• part type: Seal Engine Crankshaft
• product type: Engine
• fitment type: Direct Replacement
• compatible model s : Tx500h, Tx350, Ux200, Rx500h, Rx350h, Rx350, Rx450h, Nx350
• product subtype: Crankshafts
• department: Oem

seller cranshafengin:

• city: Brunswick, Ohio
• rating: 99.1%
• # reviews: 152872

offer cranshafengin:

• started: March 26, 2026
• sold: 0
• availability: In Stock
• quantity: 1
• options: Ship-to-home

general cranshafengin:

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

payments cranshafengin:

• credit card: Diners-club
• wallet: Google-pay
• other

shipping cranshafengin:

• type: Calculated
• carrier: FedEx
• class: Standard
• transit: 4-6 Days
• service: FedEx Ground / FedEx Home Delivery
• cost: $19.65

returns cranshafengin:

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

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