Homeβ€Ί Electrical, Charging and Starting > Starter and Related Componentsβ€Ί Standard Ignition SS-378 Starter Solenoid
Part #: RY-773

Standard Ignition SS-378 Starter Solenoid

172 vehicles fit this part
Select your vehicle to confirm fitment
Verify this part fits before purchasing β€” free returns if it doesn't
$128.08Free Shipping
Free ShippingNo Cost to Continental U.S.
Free Returns*Wrong fit? No cost
60-Day ReturnsMoney back guarantee
*Free return shipping only qualifies if our fitment verification tool is used.
In Stock Β· Ready To Ship Most orders ship same-day if ordered before 1pm CST.
OE Direct Replacement β€” Bolt-on fit, no modifications needed
Easy Returns β€” Return within 60 days for a full refund
Fast Shipping β€” Most orders ship same business day before 1pm CST

Reliable Starter Solenoid for BMW Vehicles

The Standard Ignition SS-378 starter solenoid is engineered to provide dependable starting performance for a wide range of BMW models. Designed with precise specifications, this solenoid ensures consistent electrical engagement for your vehicle's starting system.

  • Compatible with multiple BMW models including 318i, 325i, 330i, 535i, M3, M5, X3, Z3, and Z4
  • Durable black and gold dichromate and plastic finish for corrosion resistance
  • 12-volt operation with six terminals featuring stud and blade types
  • Compact size: 2.4 inches (60.96 mm) length with three mounting holes
  • Male terminal gender with 0.18 inch (4.572 mm) lug hole diameter

Product Details and Specifications

The Standard Ignition SS-378 starter solenoid is designed for use in BMW vehicles requiring a 12-volt solenoid with six terminals. Its black and gold dichromate finish combined with plastic components offers protection against environmental wear. The solenoid features a compact 2.4-inch length and three mounting holes for secure installation. Terminals include both stud and blade types, all male, facilitating reliable electrical connections. This solenoid is not rated for continuous duty and does not include hardware, mounting brackets, or springs, so ensure compatibility with your vehicle's existing components.

Compatible BMW Models and Applications

This starter solenoid is compatible with a broad range of BMW models, including but not limited to the 318i, 318is, 318ti, 323Ci, 323i, 323is, 325Ci, 325e, 325es, 325i, 325is, 325iX, 325xi, 328Ci, 328i, 328is, 330Ci, 330i, 330xi, 525i, 528e, 528i, 530i, 535i, 535is, 635CSi, 735i, 735iL, M3, M5, M6, X3, Z3, and Z4. This makes it suitable for owners and technicians working on a variety of BMW vehicles requiring a reliable starter solenoid replacement.

Common Issues Addressed by the SS-378 Starter Solenoid

  • Intermittent or no engine start due to solenoid failure
  • Clicking sounds when turning the ignition key
  • Starter motor not engaging properly
  • Electrical connection problems in the starting circuit
  • Corrosion or wear on existing solenoid terminals

Installation Notes and Tips

Before installation, verify that the Standard Ignition SS-378 matches the specifications of your original solenoid, including terminal type and mounting hole configuration. This solenoid does not include mounting hardware or springs, so reuse existing components or source compatible parts. Ensure all electrical connections are clean and secure to prevent starting issues. Disconnect the battery before installation to avoid electrical shorts or injury.

Quality Assurance and Warranty

Standard Ignition parts are manufactured to meet or exceed OEM standards for fit and function. The SS-378 starter solenoid undergoes quality control testing to ensure reliable performance. While specific warranty details may vary, Standard Ignition typically offers coverage against defects in materials and workmanship. Consult product documentation or your supplier for exact warranty terms.

BrandStandard Ignition
Part NumberRY-773
Connector GenderNo Connector
ContentsRelay
Continuous DutyNo
FunctionsRelay
Mounting Bracket(s) IncludedNo
Terminal GenderMale
Terminal TypeBlade Terminals
Voltage12

This part fits 172 vehicles. Search below:

YearMakeModelSubmodelLitersCylindersPositionNotes
2006BMW325Ci2.5LL6N/ADenso
2006BMW330Ci3.0LL6N/ADenso
2006BMW330i3.0LL6N/ADenso
2006BMW330xi3.0LL6N/ADenso
2006BMWX33.0i3.0LL6N/ADenso
2005BMW325Ci2.5LL6N/ADenso
2005BMW325i2.5LL6N/ADenso
2005BMW325xi2.5LL6N/ADenso
2005BMW330Ci3.0LL6N/ADenso
2005BMW330i3.0LL6N/ADenso
2005BMW330xi3.0LL6N/ADenso
2005BMWX32.5i2.5LL6N/ADenso
2005BMWX33.0i3.0LL6N/ADenso
2005BMWZ43.0i3.0LL6N/ADenso Starter
2005BMWZ42.5i2.5LL6N/ADenso Starter
2004BMW325Ci2.5LL6N/ADenso
2004BMW325i2.5LL6N/ADenso
2004BMW325xi2.5LL6N/ADenso
2004BMW330Ci3.0LL6N/ADenso
2004BMW330i3.0LL6N/ADenso
2004BMW330xi3.0LL6N/ADenso
2004BMW525iN/ADenso
2004BMW530iN/ADenso
2004BMWX33.0LL6N/ADenso
2004BMWX32.5LL6N/ADenso
2004BMWZ42.5i2.5LL6N/ADenso Starter
2004BMWZ43.0i3.0LL6N/ADenso Starter
2003BMW325Ci2.5LL6N/ADenso
2003BMW325i2.5LL6N/ADenso
2003BMW325xi2.5LL6N/ADenso
2003BMW330Ci3.0LL6N/ADenso
2003BMW330i3.0LL6N/ADenso
2003BMW330xi3.0LL6N/ADenso
2003BMW525iN/ADenso
2003BMW530iN/ADenso
2003BMWZ43.0LL6N/ADenso Starter
2003BMWZ42.5LL6N/ADenso Starter
2002BMW325CiN/A
2002BMW325iN/A
2002BMW325xiN/A
2002BMW330CiN/A
2002BMW330iN/A
2002BMW330xiN/A
2002BMW525iN/Aw/ Touring Package
2002BMW530iN/A
2002BMWZ32.5LL6N/A
2002BMWZ33.0LL6N/A
2001BMW325CiN/A
2001BMW325iN/A
2001BMW325xiN/A
2001BMW330CiN/A
2001BMW330iN/A
2001BMW330xiN/A
2001BMW525iN/ANot compatible with vehicles equipped with Auto Headlights
2001BMW530iN/A
2001BMWZ33.0LL6N/A
2001BMWZ32.5LL6N/A
2000BMW323CiN/A
2000BMW323iN/A
2000BMW328CiN/A
2000BMW328iN/A
2000BMW528iN/A
2000BMWZ32.8LL6N/ABosch Starter
2000BMWZ33.2LL6N/A
2000BMWZ32.5LL6N/A
1999BMW318tiN/AStarter Drive fitment note: Verify compatibility with your vehicle's make, model, and engine size prior to buying.
1999BMW323i2.5LL6N/A
1999BMW323is2.5LL6N/A
1999BMW328iN/A
1999BMW328isN/A
1999BMW528iN/A
1999BMWM3N/A
1999BMWZ33.2LL6N/A
1999BMWZ32.8LL6N/A
1999BMWZ32.5LL6N/A
1998BMW318i1.9LL4N/A
1998BMW318is1.9LL4N/A
1998BMW318ti1.9LL4N/A
1998BMW323iN/A
1998BMW323isN/A
1998BMW328iN/A
1998BMW328isN/A
1998BMW528iN/A
1998BMWM3N/A
1998BMWZ31.9LL4N/A
1998BMWZ33.2LL6N/A
1998BMWZ32.8LL6N/A
1997BMW318i1.9LL4N/A
1997BMW318is1.9LL4N/A
1997BMW318ti1.9LL4N/A
1997BMW328iN/A
1997BMW328isN/A
1997BMW528iN/A
1997BMWM3N/A
1997BMWZ32.8LL6N/A
1997BMWZ31.9LL4N/A
1996BMW318i1.9LL4N/A
1996BMW318is1.9LL4N/A
1996BMW318ti1.9LL4N/A
1996BMW328iN/A
1996BMW328isN/A
1996BMWM3N/A
1996BMWZ31.9LL4N/A
1995BMW318iN/A
1995BMW318isN/A105 Amp Alternator
1995BMW318tiN/A
1995BMW325iN/A
1995BMW325isN/A
1995BMW525iN/A140 Amp
1995BMWM3N/A
1994BMW318iN/A1.4 Kw
1994BMW318isN/A1.4 Kw
1994BMW325iN/A
1994BMW325isN/A
1994BMW525iN/A140 Amp
1993BMW318iN/A1.4 Kw
1993BMW318isN/A1.4 Kw
1993BMW325iN/A
1993BMW325isN/A
1993BMW525i2.5LL6N/A1.7 Kw
1993BMW535i3.5LL6N/A1.7 Kw
1993BMWM53.6LL6N/A1.7 Kw
1992BMW318iN/A1.4 Kw
1992BMW318isN/A1.4 Kw
1992BMW325iN/A
1992BMW325isN/A105 Amp Alternator Brush Set for various alternator models
1992BMW525i2.5LL6N/A1.4 Kw
1992BMW535i3.5LL6N/A1.4 Kw
1992BMW735i3.5LL6N/A1.7 Kw
1992BMW735iL3.5LL6N/A1.7 Kw
1992BMWM53.6LL6N/A1.4 Kw
1991BMW318i1.8LL4N/A
1991BMW318is1.8LL4N/A
1991BMW325iN/A
1991BMW325isN/A
1991BMW325iXN/A
1991BMW525i2.5LL6N/A1.4 Kw
1991BMW535i3.5LL6N/A1.7 Kw
1991BMW735i3.5LL6N/A1.4 Kw
1991BMW735iL3.5LL6N/A1.7 Kw
1991BMWM53.6LL6N/A1.7 Kw
1990BMW325iN/A
1990BMW325isN/A
1990BMW325iXN/A
1990BMW525i2.5LL6N/A1.7 Kw
1990BMW535i3.5LL6N/A1.7 Kw
1990BMW735i3.5LL6N/A1.7 Kw
1990BMW735iL3.5LL6N/A1.7 Kw
1989BMW325iN/A
1989BMW325isN/A
1989BMW325iXN/A
1989BMW525i2.5LL6N/A1.7 Kw
1989BMW535i3.5LL6N/A1.7 Kw
1989BMW635CSi3.5LL6N/A1.7 Kw
1989BMW735i3.5LL6N/A1.7 Kw
1989BMW735iL3.5LL6N/A1.7 Kw
1988BMW325iN/A
1988BMW325isN/A
1988BMW325iXN/A
1988BMW528eN/A1.5 Kw
1988BMW535i3.5LL6N/A1.7 Kw
1988BMW535is3.5LL6N/A1.7 Kw
1988BMW635CSi3.5LL6N/A1.7 Kw
1988BMW735i3.5LL6N/A1.7 Kw
1988BMW735iL3.5LL6N/A1.7 Kw
1988BMWM53.5LL6N/A1.7 Kw
1988BMWM63.5LL6N/A1.7 Kw
1987BMW325eN/A
1987BMW325esN/A
1986BMW325eN/A
1986BMW325esN/A
1985BMW325eN/A

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

25-042461358368039AR6278R6278

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.