KYB 339245 Suspension Strut - Rear Left
OE Quality 60-Day Returns
KYB
 Excel-G

KYB 339245 Suspension Strut - Rear Left

Brand KYB 339245
Position Rear Left
Compressed Length 15.40
Extended Length 22.81
R-stop Y
Stroke Length 7.41
Upper Mount Type 14X1.50
Product line Excel-G
Fits Lexus · 2 vehicles

OE replacement choice. Restores original ride control, stability, and handling.

Twin-tube design. Nitrogen gas-charged for consistent damping performance.

Triple-lip fluid seal. Helps reduce oil and gas leakage over time.

Cross-references Gabriel G56732, Lexus 48540A9330 and Lexus 4854049475 for the same application. See all 4.

$126.30Free shipping
In stock · usually ships same day before 1pm CST
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Step 2 — Quantity
Suspension Struts are typically replaced in pairs, axle by axle.
Order total $126.30
Free shipping to the continental U.S.
Free returns within 60 days if it doesn't fit when fitment is verified.
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KYB Excel-G Rear Left Strut for Lexus RX350

The KYB Excel-G 339245 is a rear left suspension strut for the 2008-2009 Lexus RX350, excluding air suspension models. Built on KYB’s Excel-G line, it restores original ride control, stability, braking response, and lane-change handling without changing the vehicle’s designed suspension behavior.

Key Features

  • Fits 2008-2009 Lexus RX350, rear left
  • Recommended OE-style replacement for Asian SUVs and crossovers
  • Nitrogen gas-charged twin-tube design
  • Vehicle-specific, hand-assembled damping valves for controlled tire contact and body motion
  • Triple-lip fluid seal helps reduce oil and gas leakage
  • Strong strut body and bracket design helps minimize flex and maintain alignment
  • Made in the USA
  • Part number: 339245

Product Details

KYB Excel-G struts are built on the same OE assembly lines used for KYB original equipment products and are calibrated to restore factory-designed performance. For Lexus RX350 rear suspension service, the 339245 strut supports consistent ride control and steering response while working with the vehicle’s suspension, brakes, and electronic safety systems as intended. This part cross-references Monroe Shocks & Struts 72773 for the same application.

Common Issues This Strut Addresses

  • Excessive bouncing or poor body control over bumps
  • Rear-end instability during braking or lane changes
  • Uneven tire contact caused by worn damping
  • Noise or vibration from a fatigued rear strut
  • Alignment drift from flex in worn suspension components

Installation Notes and Tips

Compatible with 2008-2009 Lexus RX350 rear left applications noted as Excel-G and excluding air suspension. KYB recommends replacing the strut mount, part number SM5492, to reduce noise and vibration, and using a KYB strut boot, part number SB104, to help protect the new strut from dirt, debris, and salt. Verify upper mount type 14X1.50 and confirm suspension configuration before installation.

Quality Assurance

KYB is a major OE supplier, and the Excel-G line is built to OE-quality standards using components and calibration intended to restore original vehicle performance. The 339245 is engineered for consistent damping control and durable suspension service on the Lexus RX350.

Related reading

This part fits 2 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelDrive TypePositionNotes
2009LexusRX350AWDRear LeftRecommended OEM Replacement; (Exc. Air Suspension); Excel-G
2008LexusRX350AWDRear LeftRecommended OEM Replacement; (Exc. Air Suspension); Excel-G
Directly replaces or cross-references 4 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Gabriel — G56732Lexus — 48540A9330Lexus — 4854049475Monroe Shocks & Struts — 72773