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BMW Radiator Cap

PART#: 31331
Gates
Warranty information
We offer a 2-year warranty on all parts that we sell. If the part fails within 2 years of purchase, please contact us for instructions to replace it. The warranty does not cover normal wear and tear or improper installation.
Specifications
Cap Depth1.25
Coolant Recovery SystemClosed System
Filler Neck Depth (in)1.62
Filler Neck Depth (mm)41
Filler Neck Inside Diameter1.16
Filler Neck Inside Diameter29
Filler Neck Outside Diameter2.14
Filler Neck Outside Diameter54
OE Comparison RatingOE Performance
Pressure Rating (psi)20
SAE Pressure Range (psi)18-22
Shell Diameter (in)2.61
TypeThreaded Coolant Bottle Cap
Interchanges
BrandPart #
BMW17111719167
BMW17111742232
BMW17112242256
BMW17114379048
BMW17137639023
Carquest33053
CARQUEST or Stant10246
CST7042
MotoradT-43 / T43
NAPA703-1398 / 7031398
NAPA Belts/Hose31331
RaproR66103
RoverESR 1480 / ESR1480
Stant10246
Stant11246
Stant46054
Fitments
VehiclePositionNote
1993 BMW 535i E34 Radiator Cap20 psi Pressure Rating | 3.5 L6; GAS;
1992 BMW 318i E30 Radiator Cap20 psi Pressure Rating | 1.8 L4; Convertible; GAS;
1992 BMW 318i E36 Radiator Cap20 psi Pressure Rating | 1.8 L4; Convertible; GAS;
1992 BMW 325i E30 Radiator Cap20 psi Pressure Rating | 2.5 L6; Convertible; GAS;
1992 BMW 325i E36 Radiator Cap20 psi Pressure Rating | 2.5 L6; Convertible; GAS;
1992 BMW 535i E34 Radiator Cap20 psi Pressure Rating | 3.5 L6; GAS;
1991 BMW 318i E30 Radiator Cap20 psi Pressure Rating | 1.8 L4; GAS;
1991 BMW 318is E30 Radiator Cap20 psi Pressure Rating | 1.8 L4; GAS;
1991 BMW 325i E30 Radiator Cap20 psi Pressure Rating | 2.5 L6; GAS;
1991 BMW 325is E30 Radiator Cap20 psi Pressure Rating | 2.5 L6; GAS;
1991 BMW 325iX E30 Radiator Cap20 psi Pressure Rating | 2.5 L6; GAS;
1991 BMW 535i E34 Radiator Cap20 psi Pressure Rating | 3.5 L6; GAS;
1990 BMW 325i E30 Radiator Cap20 psi Pressure Rating | 2.5 L6; GAS;
1990 BMW 325is E30 Radiator Cap20 psi Pressure Rating | 2.5 L6; GAS;
1990 BMW 325iX E30 Radiator Cap20 psi Pressure Rating | 2.5 L6; GAS;
1990 BMW 535i E34 Radiator Cap20 psi Pressure Rating | 3.5 L6; GAS;
1989 BMW 325i E30 Radiator Cap20 psi Pressure Rating | 2.5 L6; GAS;
1989 BMW 325is E30 Radiator Cap20 psi Pressure Rating | 2.5 L6; GAS;
1989 BMW 325iX E30 Radiator Cap20 psi Pressure Rating | 2.5 L6; GAS;
1989 BMW 535i E34 Radiator Cap20 psi Pressure Rating | 3.5 L6; GAS;
1988 BMW 325 E30 Radiator Cap20 psi Pressure Rating | 2.7 L6; GAS;
1988 BMW 325i E30 Radiator Cap20 psi Pressure Rating | 2.5 L6; GAS;
1988 BMW 325is E30 Radiator Cap20 psi Pressure Rating | 2.5 L6; GAS;
1988 BMW 325iX E30 Radiator Cap20 psi Pressure Rating | 2.5 L6; GAS;
1987 BMW 325 E30 Radiator Cap20 psi Pressure Rating | 2.7 L6; GAS;
1987 BMW 325e E30 Radiator Cap20 psi Pressure Rating | 2.7 L6; GAS;
1987 BMW 325i E30 Radiator Cap20 psi Pressure Rating | 2.5 L6; GAS;
1987 BMW 325is E30 Radiator Cap20 psi Pressure Rating | 2.5 L6; GAS;
1987 BMW 325es E30 Radiator Cap20 psi Pressure Rating | 2.7 L6; GAS;
1986 BMW 325e E30 Radiator Cap20 psi Pressure Rating | 2.7 L6; GAS;
1986 BMW 325es E30 Radiator Cap20 psi Pressure Rating | 2.7 L6; GAS;
1986 BMW 325 E30 Radiator Cap20 psi Pressure Rating | 2.7 L6; GAS;

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