TOYOTA 90116-08329 Stud Bolt

The genuine OEM Toyota 90116-08329 stud bolt (BOLT, STUD) is a reliable fastener for the vehicle's drivetrain assembly. According to original factory specifications, its primary installation position is mounting the rear differential carrier housing (BOLT, NO.1 FOR REAR DIFFERENTIAL CARRIER SET). The dynamic torque loads and vibrations present in drive units demand the use of factory stud bolts with exact tensile strength and precision fitment to prevent loosening of the differential housing, subsequent lubricant leaks, and drivetrain damage.

Technical Specifications and Features

• Part Type: Stud Bolt
• Manufacturer: Toyota OEM
• Part Number (SKU): 90116-08329
• OEM Interchange and Reference Numbers: 90116A0018, 9011608238, 9011608414
• Installation Area / Function: Rear differential carrier mounting (Rear Differential Carrier Set)
• Material Quality: High-tensile, corrosion-resistant steel

Vehicle Compatibility

• Toyota 4Runner (N180) [1995 - ...] – 2.7 (3RZFE), 3.0 TD (1KZT), 3.0 D-4D (1KDFTV)
• Toyota 4Runner (N210) – 2.4 (22R) [1989 - 1995], 2.7 (3RZFE) [2002 - 2004], 3.0 TD (1KZTE) [2002 - 2005], 3.0 D-4D (1KDFTV) [2002 - 2005], 3.4 (5VZFE) [1989 - 1995], 4.0 (1GRFE) [2002 - ...]
• Toyota Dyna / Toyoace (U60-U90/Y50-Y80) [1989 - 1995]
• Toyota Dyna / Toyoace (U100/U200/Y100) [1995 - ...]
• Toyota Dyna / Toyoace (U300/U400/Y200) [1995 - ...]
• Toyota FJ Cruiser (GSJ1, GSJ15) 4.0 (1GRFE) [2006 - 2009]
• Toyota Fortuner (GGN50, GGN155) – 2.7 (2TRFE), 3.0 D (5LE), 3.0 D-4D (1KDFTV), 4.0 (1GRFE) [2005 - ...]
• Toyota Hiace (H50-H90) [1989 - 1995]
• Toyota Hiace (H100) 2.0 (1RZ) [1999 - ...]
• Toyota Hiace (H200) – 2.5 D-4D (2KDFTV), 2.7 (2TRFE), 2.8 D-4D (1GDFTV) [2004 - ...]
• Toyota Hilux (N80-N110) – 2.2 (4YE), 2.4 (22R), 2.4 TD (2LT), 3.0 TD (1KZT) [1989 - 1997]
• Toyota Hilux (N140-N170) – 2.0 (1RZ), 2.4 TD (2LT), 2.7 (3RZF), 3.0 TD (1KZTE), 3.0 D-4D (1KDFTV), 3.4 (5VZFE) [1997 - 2005]
• Toyota Hilux (N10/N20/N30) – 2.7 (2TRFE), 3.0 D (5LE), 3.0 D-4D (1KDFTV), 4.0 (1GRFE) [2004 - 2015]
• Toyota Hilux (N120/N130) – 2.7 (2TRFE), 3.0 D (5LE) [2020 - ...]
• Toyota Innova / Kijang (AN40, AN140) – 2.7 (2TRFE), 2.8 D-4D (1GDFTV) [2005 - ...]
• Toyota Land Cruiser 70 (J70) – 2.4 (22R), 2.4 TD (2LT), 3.0 TD (1KZT), 3.5 D (1PZ), 4.0 (1GRFE), 4.2 D (1HZ), 4.2 TD (1HDFTE), 4.5 (1FZF), 4.5 D-4D (1VDFTV) [1985 - 2019]
• Toyota Land Cruiser 80 (J80) – 4.0 (3FE), 4.2 D (1HZ), 4.2 TD (1HDFT), 4.5 (1FZF) [1990 - 1999]
• Toyota Land Cruiser 100 (J100) 4.5 (1FZFE) [1998 - ...]
• Toyota Land Cruiser Prado (J90) – 2.7 (3RZF), 3.0 TD (1KZT), 3.0 D-4D (1KDFTV) [1996 - 2002]
• Toyota Land Cruiser Prado (J120) – 2.7 (3RZFE), 3.0 TD (1KZTE), 3.0 D-4D (1KDFTV), 4.0 (1GRFE) [2002 - ...]
• Toyota Lexus GX (J120) 4.7 (2UZFE) [2002 - ...]
• Toyota Lexus LX (J80) 4.5 (1FZFE) [1995 - 1998]
• Toyota LiteAce / TownAce (M30/M40/R20/R30, R40/R50) [1991 - 2002]
• Toyota Quick Delivery (BU68) [1995 - ...]
• Toyota Tacoma (RZN140, RZN161, GRN2) – 2.7 (3RZFE), 3.4 (5VZFE), 4.0 (1GRFE) [1995 - 2015]

Functional Role and Symptoms of Failure

The differential carrier stud bolts ensure stable, displacement-free securing of the differential assembly to the axle housing. Incorrect tightening torque, corrosion, or excessive mechanical fatigue can lead to thread deformation, stretching, or bolt breakage. A compromised or loose stud bolt can manifest as drivetrain vibrations, differential fluid leaks, and abnormal mechanical noises. During differential service or overhaul, replacing stretched or damaged stud bolts is strictly recommended to restore factory-specified clamping rigidity.