GKN Loebro 305121 CV Joint Boot Kit - Front Inner, Front Left Inner or Front Right Inner
OE Quality 60-Day Returns
GKN Loebro

GKN Loebro 305121 CV Joint Boot Kit - Front Inner, Front Left Inner or Front Right Inner

Brand GKN Loebro 305121
Position Front Right Inner, Front Left Inner, and Front Inner
Joint End Inside Diameter 3.188
Shaft End Inside Diameter 0.826
Rib Quantity 1
Boot Material Rubber
Vented Boot No
Boot Color Black
Split Or Solid Type Solid
Fits Audi and Volkswagen · 191 vehicles

OE quality. Boot kit from a global leader in drive systems.

Rubber construction. Provides reliable protection against damage.

Solid boot design. Helps guard the joint from torn or porous boots.

Cross-references 4E0498201 for the same application. See all 1.

$21.74Free shipping
In stock · usually ships same day before 1pm CST
Step 1 — Confirm fitment
Free return shipping if it doesn't fit when you check fitment here first.

Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
Step 2 — Quantity
Order total $21.74
Free shipping to the continental U.S.
Free returns within 60 days if it doesn't fit when fitment is verified.
Not what you need? See all CV Joint Boot Kit options

OE-Style CV Boot Kit for Audi and Volkswagen

GKN Loebro 305121 is a premium OE-quality CV joint boot kit for front inner driveline service. It is built with a solid black rubber boot and the correct joint-side and shaft-side dimensions for a precise replacement on select Audi A4, A4 Quattro, A6, A6 Quattro, A8 Quattro, S4, S8, RS4, and Volkswagen Beetle applications.

When a CV boot tears, slips, or becomes porous, grease loss and contamination can quickly lead to joint wear. This GKN Loebro 305121 boot kit is designed for exact-fit repair work on the specified front right inner, front left inner, and front inner positions.

  • Boot material: rubber
  • Boot color: black
  • Solid boot design
  • Vented boot: no
  • Joint end inside diameter: 3.188 in.
  • Shaft end inside diameter: 0.826 in.
  • Rib quantity: 1

Detailed Product Information

GKN Loebro 305121 is engineered as a direct-fit CV joint boot kit for driveline and axle repair. The boot is matched to the joint design, which matters because the wrong boot shape or material can lead to poor sealing and premature failure. For vehicles originally equipped with a TPE boot, GKN Automotive recommends matching the replacement material to the original specification; this kit uses rubber construction for the listed applications. This part cross-references 4E0498201 for the same application.

Use this boot kit on select 2003-2011 Audi and Volkswagen models, including front right inner and front left inner service on Audi A4, A4 Quattro, A6, A6 Quattro, A8 Quattro, S4, S8, RS4, and Volkswagen Beetle applications. GKN Loebro 305121 is a fitment-specific repair part, so confirming VIN breakpoints and position details is important before installation.

What This Part Helps Repair

  • Torn CV boot causing grease leakage
  • Slipped boot that no longer seals the joint
  • Porous boot material that allows contamination
  • CV joint noise caused by loss of lubrication
  • Wear from dirt and moisture entering the joint

Installation Notes

Inspect the CV joint before installing the new boot. If the joint has been run dry, contaminated, or noisy for an extended period, replacement of the boot alone may not restore proper operation. Verify the exact position, VIN breakpoint, and boot dimensions before assembly. Follow the vehicle service procedure for clamp, circlip, and fastener installation to ensure the boot seats correctly and maintains a proper seal.

Quality Assurance

GKN Loebro is part of GKN Automotive, a global driveline systems supplier known for OE-quality replacement components. This boot kit is built to the fit and material requirements needed for professional CV joint repair on the listed Audi and Volkswagen applications.

Related reading

This part fits 191 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelBody TypeDrive TypeTransmissionLitersCylindersPositionNotes
2011AudiA6—FWD—3.2LV6Front Right Inner—
2011AudiA6—FWD—3.2LV6Front Left Inner—
2011AudiA6 Quattro—AWD—4.2LV8Front Right Inner—
2011AudiA6 Quattro—AWD—4.2LV8Front Left Inner—
2011AudiA6 Quattro—AWD—3.0LV6Front Right Inner—
2011AudiA6 Quattro—AWD—3.0LV6Front Left Inner—
2010AudiA6—FWD—3.2LV6Front Right Inner—
2010AudiA6—FWD—3.2LV6Front Left Inner—
2010AudiA6 Quattro—AWD—4.2LV8Front Right Inner—
2010AudiA6 Quattro—AWD—4.2LV8Front Left Inner—
2010AudiA6 Quattro—AWD—3.0LV6Front Right Inner—
2010AudiA6 Quattro—AWD—3.0LV6Front Left Inner—
2010AudiA8 Quattro—AWDAutomatic4.2LV8Front Right Inner—
2010AudiA8 Quattro—AWDAutomatic4.2LV8Front Left Inner—
2009AudiA4ConvertibleFWD—2.0LL4Front Right Inner—
2009AudiA4ConvertibleFWD—2.0LL4Front Left Inner—
2009AudiA4 QuattroConvertibleAWD—3.2LV6Front Right Inner—
2009AudiA4 QuattroConvertibleAWD—3.2LV6Front Left Inner—
2009AudiA6—FWD—3.2LV6Front Right Inner—
2009AudiA6—FWD—3.2LV6Front Left Inner—
2009AudiA6 Quattro—AWD—4.2LV8Front Right Inner—
2009AudiA6 Quattro—AWD—4.2LV8Front Left Inner—
2009AudiA6 Quattro—AWD—3.0LV6Front Right Inner—
2009AudiA6 Quattro—AWD—3.0LV6Front Left Inner—
2009AudiA8 Quattro—AWD—6.0LW12Front Right InnerFits official, special, rental, and standard vehicles including CV Joint Boot Kit [F5B, F0A, F4F]
2009AudiA8 Quattro—AWD—6.0LW12Front Left Inner—
2009AudiA8 Quattro—AWD—4.2LV8Front Right Inner—
2009AudiA8 Quattro—AWD—4.2LV8Front Left Inner—
2009AudiS4ConvertibleAWD—4.2LV8Front Right Inner—
2009AudiS4ConvertibleAWD—4.2LV8Front Left Inner—
2009AudiS8—AWD—5.2LV10Front Left Inner—
2009AudiS8—AWDAutomatic5.2LV10Front Right InnerFits official, special, rental, and standard vehicles including CV Joint Boot Kit [F5B, F0A, F4F]
2008AudiA4SedanFWD—3.2LV6Front Right Inner—
2008AudiA4SedanFWD—3.2LV6Front Left Inner—
2008AudiA4SedanFWD—2.0LL4Front Right Inner—
2008AudiA4SedanFWD—2.0LL4Front Left Inner—
2008AudiA4ConvertibleFWD—2.0LL4Front Right Inner—
2008AudiA4ConvertibleFWD—2.0LL4Front Left Inner—
2008AudiA4 QuattroWagonAWDAutomatic3.2LV6Front Right Inner—
2008AudiA4 QuattroWagonAWDAutomatic3.2LV6Front Left Inner—
2008AudiA4 QuattroSedanAWDAutomatic3.2LV6Front Right Inner—
2008AudiA4 QuattroSedanAWDAutomatic3.2LV6Front Left Inner—
2008AudiA4 QuattroConvertibleAWDAutomatic3.2LV6Front Right Inner—
2008AudiA4 QuattroConvertibleAWDAutomatic3.2LV6Front Left Inner—
2008AudiA6—FWD—3.2LV6Front Right Inner—
2008AudiA6—FWD—3.2LV6Front Left Inner—
2008AudiA6 Quattro—AWD—4.2LV8Front Right Inner—
2008AudiA6 Quattro—AWD—4.2LV8Front Left Inner—
2008AudiA6 Quattro—AWD—3.2LV6Front Right Inner—
2008AudiA6 Quattro—AWD—3.2LV6Front Left Inner—
2008AudiA8 Quattro—AWD—6.0LW12Front Right InnerFits official, special, rental, and standard vehicles including CV Joint Boot Kit [F5B, F0A, F4F]
2008AudiA8 Quattro—AWD—6.0LW12Front Left Inner—
2008AudiA8 Quattro—AWD—4.2LV8Front Right Inner—
2008AudiA8 Quattro—AWD—4.2LV8Front Left Inner—
2008AudiRS4SedanAWD—4.2LV8Front Right Inner—
2008AudiRS4SedanAWD—4.2LV8Front Left Inner—
2008AudiRS4ConvertibleAWD—4.2LV8Front Right Inner—
2008AudiRS4ConvertibleAWD—4.2LV8Front Left Inner—
2008AudiS4WagonAWD—4.2LV8Front Right Inner—
2008AudiS4WagonAWD—4.2LV8Front Left Inner—
2008AudiS4SedanAWD—4.2LV8Front Right Inner—
2008AudiS4SedanAWD—4.2LV8Front Left Inner—
2008AudiS4ConvertibleAWD—4.2LV8Front Right Inner—
2008AudiS4ConvertibleAWD—4.2LV8Front Left Inner—
2008AudiS8—AWD—5.2LV10Front Left Inner—
2008AudiS8—AWDAutomatic5.2LV10Front Right InnerFits official, special, rental, and standard vehicles including CV Joint Boot Kit [F5B, F0A, F4F]
2007AudiA4SedanFWD—3.2LV6Front Right Inner—
2007AudiA4SedanFWD—3.2LV6Front Left Inner—
2007AudiA4SedanFWD—2.0LL4Front Right Inner—
2007AudiA4SedanFWD—2.0LL4Front Left Inner—
2007AudiA4ConvertibleFWD—2.0LL4Front Right Inner—
2007AudiA4ConvertibleFWD—2.0LL4Front Left Inner—
2007AudiA4 QuattroWagonAWDAutomatic3.2LV6Front Right Inner—
2007AudiA4 QuattroWagonAWDAutomatic3.2LV6Front Left Inner—
2007AudiA4 QuattroSedanAWDAutomatic3.2LV6Front Right Inner—
2007AudiA4 QuattroSedanAWDAutomatic3.2LV6Front Left Inner—
2007AudiA4 QuattroConvertibleAWDAutomatic3.2LV6Front Right Inner—
2007AudiA4 QuattroConvertibleAWDAutomatic3.2LV6Front Left Inner—
2007AudiA6—FWD—3.2LV6Front Right Inner—
2007AudiA6—FWD—3.2LV6Front Left Inner—
2007AudiA6 Quattro—AWD—4.2LV8Front Right Inner—
2007AudiA6 Quattro—AWD—4.2LV8Front Left Inner—
2007AudiA6 Quattro—AWD—3.2LV6Front Right Inner—
2007AudiA6 Quattro—AWD—3.2LV6Front Left Inner—
2007AudiA8 Quattro—AWD—6.0LW12Front Right InnerFits official, special, rental, and standard vehicles including CV Joint Boot Kit [F5B, F0A, F4F]
2007AudiA8 Quattro—AWD—6.0LW12Front Left InnerFits official, special, rental, and standard vehicles including CV Joint Boot Kit [F5B, F0A, F4F]
2007AudiA8 Quattro—AWD—4.2LV8Front Right Inner—
2007AudiA8 Quattro—AWD—4.2LV8Front Left Inner—
2007AudiRS4—AWD—4.2LV8Front Right Inner—
2007AudiRS4—AWD—4.2LV8Front Left Inner—
2007AudiS4WagonAWD—4.2LV8Front Right Inner—
2007AudiS4WagonAWD—4.2LV8Front Left Inner—
2007AudiS4SedanAWD—4.2LV8Front Right Inner—
2007AudiS4SedanAWD—4.2LV8Front Left Inner—
2007AudiS4ConvertibleAWD—4.2LV8Front Right Inner—
2007AudiS4ConvertibleAWD—4.2LV8Front Left Inner—
2007AudiS8—AWDAutomatic5.2LV10Front Right InnerFitment note: Official vehicle/special vehicle [F5B], no special purpose vehicle, standard equipment [F0A], rental car equipment [F4F].
2007AudiS8—AWDAutomatic5.2LV10Front Left InnerFitment note: Official vehicle/special vehicle [F5B], no special purpose vehicle, standard equipment [F0A], rental car equipment [F4F].
2006AudiA4SedanFWD—3.2LV6Front Right Inner—
2006AudiA4SedanFWD—3.2LV6Front Left Inner—
2006AudiA4SedanFWD—2.0LL4Front Right Inner—
2006AudiA4SedanFWD—2.0LL4Front Left Inner—
2006AudiA4ConvertibleFWD—1.8LL4Front Right Inner—
2006AudiA4ConvertibleFWD—1.8LL4Front Left Inner—
2006AudiA4 Quattro—AWDAutomatic3.2LV6Front Right Inner—
2006AudiA4 Quattro—AWDAutomatic3.2LV6Front Left Inner—
2006AudiA4 QuattroConvertibleAWD—3.0LV6Front Right InnerFitment note: Fits vehicles with VIN starting with 8H-4-014 951.
2006AudiA4 QuattroConvertibleAWD—3.0LV6Front Left InnerFitment note: Fits vehicles with VIN starting with 8H-4-014 951.
2006AudiA6—FWD—3.2LV6Front Right Inner—
2006AudiA6—FWD—3.2LV6Front Left Inner—
2006AudiA6 Quattro—AWD—4.2LV8Front Right Inner—
2006AudiA6 Quattro—AWD—4.2LV8Front Left Inner—
2006AudiA6 Quattro—AWD—3.2LV6Front Right Inner—
2006AudiA6 Quattro—AWD—3.2LV6Front Left Inner—
2006AudiA8 Quattro—AWD—6.0LW12Front Right InnerFits official, special, rental, and standard vehicles including CV Joint Boot Kit [F5B, F0A, F4F]
2006AudiA8 Quattro—AWD—6.0LW12Front Left InnerFits official, special, rental, and standard vehicles including CV Joint Boot Kit [F5B, F0A, F4F]
2006AudiS4—AWD—4.2LV8Front Right Inner—
2006AudiS4—AWD—4.2LV8Front Left Inner—
2005AudiA4SedanFWD—3.0LV6Front Right InnerFrom vin 8E-4-195 501
2005AudiA4SedanFWD—3.0LV6Front Left InnerFrom vin 8E-4-195 501
2005AudiA4ConvertibleFWD—3.0LV6Front Right InnerFitment note: Fits vehicles with VIN starting with 8H-4-014 951.
2005AudiA4ConvertibleFWD—3.0LV6Front Left InnerFitment note: Fits vehicles with VIN starting with 8H-4-014 951.
2005AudiA4SedanFWD—2.0LL4Front Right Inner—
2005AudiA4SedanFWD—2.0LL4Front Left Inner—
2005AudiA4WagonFWD—1.8LL4Front Right InnerFrom vin 8E-4-195 501
2005AudiA4WagonFWD—1.8LL4Front Right InnerFrom vin 8E-4-000 001
2005AudiA4WagonFWD—1.8LL4Front Left InnerFrom vin 8E-4-195 501
2005AudiA4WagonFWD—1.8LL4Front Left InnerFrom vin 8E-4-000 001
2005AudiA4SedanFWD—1.8LL4Front Right InnerFrom vin 8E-4-195 501
2005AudiA4SedanFWD—1.8LL4Front Right InnerFrom vin 8E-4-000 001
2005AudiA4SedanFWD—1.8LL4Front Left InnerFrom vin 8E-4-195 501
2005AudiA4SedanFWD—1.8LL4Front Left InnerFrom vin 8E-4-000 001
2005AudiA4ConvertibleFWD—1.8LL4Front Right InnerFitment note: Fits vehicles with VIN starting with 8H-4-014 951.
2005AudiA4ConvertibleFWD—1.8LL4Front Left InnerFitment note: Fits vehicles with VIN starting with 8H-4-014 951.
2005AudiA4 Quattro—AWDAutomatic3.2LV6Front Right Inner—
2005AudiA4 Quattro—AWDAutomatic3.2LV6Front Left Inner—
2005AudiA4 Quattro—AWD—3.0LV6Front Inner—
2005AudiA4 Quattro—AWDAutomatic1.8LL4Front Right InnerFrom vin 8E-4-195 501
2005AudiA4 Quattro—AWDAutomatic1.8LL4Front Left InnerFrom vin 8E-4-195 501
2005AudiA6 Quattro—AWD—4.2LV8Front Right Inner—
2005AudiA6 Quattro—AWD—4.2LV8Front Left Inner—
2005AudiA6 Quattro—AWD—3.2LV6Front Right Inner—
2005AudiA6 Quattro—AWD—3.2LV6Front Left Inner—
2005AudiA8 Quattro—AWD—6.0LW12Front Right InnerFits official, special, rental, and standard vehicles including CV Joint Boot Kit [F5B, F0A, F4F]
2005AudiA8 Quattro—AWD—6.0LW12Front Left InnerFits official, special, rental, and standard vehicles including CV Joint Boot Kit [F5B, F0A, F4F]
2005AudiA8 Quattro—AWD—4.2LV8Front Right InnerFits official, special, rental, and standard vehicles including CV Joint Boot Kit [F5B, F0A, F4F]
2005AudiA8 Quattro—AWD—4.2LV8Front Left InnerFits official, special, rental, and standard vehicles including CV Joint Boot Kit [F5B, F0A, F4F]
2005AudiS4—AWD—4.2LV8Front Inner—
2005VolkswagenBeetleHatchbackFWDAutomatic2.0LL4Front Right Inner—
2005VolkswagenBeetleHatchbackFWDAutomatic2.0LL4Front Left Inner—
2005VolkswagenBeetleHatchbackFWDAutomatic1.8LL4Front Right Inner—
2005VolkswagenBeetleHatchbackFWDAutomatic1.8LL4Front Left Inner—
2005VolkswagenBeetleConvertibleFWDAutomatic1.8LL4Front Right Inner—
2005VolkswagenBeetleConvertibleFWDAutomatic1.8LL4Front Left Inner—
2004AudiA4WagonFWD—3.0LV6Front Right InnerFrom vin 8E-4-195 501
2004AudiA4WagonFWD—3.0LV6Front Left InnerFrom vin 8E-4-195 501
2004AudiA4SedanFWD—3.0LV6Front Right InnerFrom vin 8E-4-195 501
2004AudiA4SedanFWD—3.0LV6Front Left InnerFrom vin 8E-4-195 501
2004AudiA4ConvertibleFWD—3.0LV6Front Right InnerFitment note: Fits vehicles with VIN starting with 8H-4-014 951.
2004AudiA4ConvertibleFWD—3.0LV6Front Left InnerFitment note: Fits vehicles with VIN starting with 8H-4-014 951.
2004AudiA4WagonFWD—1.8LL4Front Right InnerFrom vin 8E-4-195 501
2004AudiA4WagonFWD—1.8LL4Front Right InnerFrom vin 8E-4-000 001
2004AudiA4WagonFWD—1.8LL4Front Left InnerFrom vin 8E-4-195 501
2004AudiA4WagonFWD—1.8LL4Front Left InnerFrom vin 8E-4-000 001
2004AudiA4SedanFWD—1.8LL4Front Right InnerFrom vin 8E-4-195 501
2004AudiA4SedanFWD—1.8LL4Front Right InnerFrom vin 8E-4-000 001
2004AudiA4SedanFWD—1.8LL4Front Left InnerFrom vin 8E-4-195 501
2004AudiA4SedanFWD—1.8LL4Front Left InnerFrom vin 8E-4-000 001
2004AudiA4ConvertibleFWD—1.8LL4Front Right InnerFitment note: Fits vehicles with VIN starting with 8H-4-014 951.
2004AudiA4ConvertibleFWD—1.8LL4Front Left InnerFitment note: Fits vehicles with VIN starting with 8H-4-014 951.
2004AudiA4 Quattro—AWD—3.0LV6Front InnerCV Joint Boot Kit for a rubber boot.
2004AudiA4 Quattro—AWDAutomatic1.8LL4Front Right InnerFrom vin 8E-4-195 501; From Vin 8E-2-000 001; To Vin 8E-5-400 000
2004AudiA4 Quattro—AWDAutomatic1.8LL4Front Left InnerFrom vin 8E-4-195 501; From Vin 8E-2-000 001; To Vin 8E-5-400 000
2004AudiA8 Quattro—AWD—4.2LV8Front Right InnerFits official, special, rental, and standard vehicles including CV Joint Boot Kit [F5B, F0A, F4F]
2004AudiA8 Quattro—AWD—4.2LV8Front Left InnerFits official, special, rental, and standard vehicles including CV Joint Boot Kit [F5B, F0A, F4F]
2004AudiS4—AWD—4.2LV8Front Inner—
2004VolkswagenBeetleHatchbackFWDAutomatic2.0LL4Front Inner—
2004VolkswagenBeetleHatchbackFWDAutomatic1.9LL4Front Right Inner—
2004VolkswagenBeetleHatchbackFWDAutomatic1.9LL4Front Left Inner—
2004VolkswagenBeetleHatchbackFWDAutomatic1.8LL4Front Right Inner—
2004VolkswagenBeetleHatchbackFWDAutomatic1.8LL4Front Left Inner—
2004VolkswagenBeetleConvertibleFWDAutomatic1.8LL4Front Right Inner—
2004VolkswagenBeetleConvertibleFWDAutomatic1.8LL4Front Left Inner—
2003VolkswagenBeetleHatchbackFWDAutomatic2.0LL4Front Right Inner—
2003VolkswagenBeetleHatchbackFWDAutomatic2.0LL4Front Left Inner—
2003VolkswagenBeetleHatchbackFWDAutomatic1.9LL4Front Right Inner—
2003VolkswagenBeetleHatchbackFWDAutomatic1.9LL4Front Left Inner—
2003VolkswagenBeetleHatchbackFWDAutomatic1.8LL4Front Right Inner—
2003VolkswagenBeetleHatchbackFWDAutomatic1.8LL4Front Left Inner—
2003VolkswagenBeetleConvertibleFWDAutomatic1.8LL4Front Right Inner—
2003VolkswagenBeetleConvertibleFWDAutomatic1.8LL4Front Left Inner—
Directly replaces or cross-references 1 part number
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
4E0498201