1981 Saab 900 Electrical Switch & Relay Parts

Engine:
2.0L L4

49 Electrical switch & relay parts are listed for the 1981 Saab 900, in 15 part types, covering the 2.0L L4 engine. Each one has a brand, a manufacturer part number and notes that say where it fits.

The switch and relay system on the 1981 Saab 900 covers the switches, relays and flashers that route power to everything the driver touches. The largest groups are Radiator Fan Relay (10 parts), Horn Relay (8 parts) and Ignition Relay (7 parts). The other 12 part types cover the remaining 24 parts.

A/C Compressor Relay

Brand Part Number Markets Notes Buy
ÜRO PARTS 8533176
🇺🇸 US 🇨🇦 CA
Clutch Relay
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This table covers the relays that control the A/C Compressor circuit. Typical signs include a click with no action, or a circuit that works only when you swap in a known-good relay. Swap with an identical relay in the fuse box before buying — it is the fastest test there is.

Brake Light Switch

Brand Part Number Markets Notes Buy
CALORSTAT BS4521
🇺🇸 US 🇨🇦 CA
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HELLA 004846001
🇺🇸 US 🇨🇦 CA
2-Pin ConnectorBolted
Fitment notes — HELLA 004846001
2-Pin ConnectorBolted
ElectricManual Transmission
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This table covers the pedal-mounted switch that turns on the brake lamps. Typical signs include a function that works intermittently, or a click without the accessory coming on. Inspect the connector behind the switch; heat-damaged terminals will kill the new part too.

Defroster Relay

Brand Part Number Markets Notes Buy
ÜRO PARTS 8522310
🇺🇸 US 🇨🇦 CA
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WELLS 1R1616
🇺🇸 US 🇨🇦 CA
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This table covers the relays that control the Defroster circuit. Typical signs include a click with no action, or a circuit that works only when you swap in a known-good relay. Swap with an identical relay in the fuse box before buying — it is the fastest test there is.

Fog / Driving Lamp Relay

Brand Part Number Markets Notes Buy
ÜRO PARTS 8522310
🇺🇸 US 🇨🇦 CA
5 spade relay
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ÜRO PARTS 8533176
🇺🇸 US 🇨🇦 CA
Verify Part Number on Old Part Before Ordering
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This table covers the relays that control the Fog / Driving Lamp circuit. Typical signs include a click with no action, or a circuit that works only when you swap in a known-good relay. Swap with an identical relay in the fuse box before buying — it is the fastest test there is.

Fuel Injection Relay

Brand Part Number Markets Notes Buy
ÜRO PARTS 8533176
🇺🇸 US 🇨🇦 CA
Verify Part Number on Old Part Before Ordering
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This table covers the relays that control the Fuel Injection circuit. Typical signs include a click with no action, or a circuit that works only when you swap in a known-good relay. Swap with an identical relay in the fuse box before buying — it is the fastest test there is.

Fuel Pump / Circuit Opening Relay

Brand Part Number Markets Notes Buy
ÜRO PARTS 8522310
🇺🇸 US 🇨🇦 CA
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This table covers the relays that control the Fuel Pump / Circuit Opening circuit. Typical signs include a click with no action, or a circuit that works only when you swap in a known-good relay. Swap with an identical relay in the fuse box before buying — it is the fastest test there is.

Headlamp Relay

Brand Part Number Markets Notes Buy
ÜRO PARTS 8533176
🇺🇸 US 🇨🇦 CA
Verify Part Number on Old Part Before Ordering
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This table covers the relays that control the Headlamp circuit. Typical signs include a click with no action, or a circuit that works only when you swap in a known-good relay. Swap with an identical relay in the fuse box before buying — it is the fastest test there is.

Horn Relay

Brand Part Number Markets Notes Buy
DORMAN Popular 84601
🇺🇸 US 🇨🇦 CA
Relays - Universal4 Pin 30 Amp 12 Volt
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ÜRO PARTS Popular 8522310
🇺🇸 US 🇨🇦 CA
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ROSTRA 600027
🇺🇸 US 🇨🇦 CA
Voltage: 12 Volts (Direct Current)
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STANDARD MOTOR PRODUCTS RY265T
🇺🇸 US 🇨🇦 CA
T-Series
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STANDARD MOTOR PRODUCTS RY265
🇺🇸 US 🇨🇦 CA
Connector Shape: SquareFunctions: Relay
Fitment notes — STANDARD MOTOR PRODUCTS RY265
Connector Shape: SquareFunctions: RelayMounting Bracket(s) Included: No
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STANDARD MOTOR PRODUCTS RY273
🇺🇸 US 🇨🇦 CA
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UNITED MOTOR PRODUCTS RLY17
🇺🇸 US 🇨🇦 CA
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WELLS 1R1616
🇺🇸 US 🇨🇦 CA
View on
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This table covers the relays that control the Horn circuit. Typical signs include a click with no action, or a circuit that works only when you swap in a known-good relay. Swap with an identical relay in the fuse box before buying — it is the fastest test there is.

Ignition Relay

Brand Part Number Markets Notes Buy
DORMAN Popular 84601
🇺🇸 US 🇨🇦 CA
Relays - Universal4 Pin 30 Amp 12 Volt
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ÜRO PARTS Popular 8533176
🇺🇸 US 🇨🇦 CA
View on
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ROSTRA 600027
🇺🇸 US 🇨🇦 CA
Voltage: 12 Volts (Direct Current)
View on
Amazon
STANDARD MOTOR PRODUCTS RY265T
🇺🇸 US 🇨🇦 CA
T-Series
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STANDARD MOTOR PRODUCTS RY265
🇺🇸 US 🇨🇦 CA
Connector Shape: SquareFunctions: Relay
Fitment notes — STANDARD MOTOR PRODUCTS RY265
Connector Shape: SquareFunctions: RelayMounting Bracket(s) Included: No
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STANDARD MOTOR PRODUCTS RY273
🇺🇸 US 🇨🇦 CA
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WELLS 1R1616
🇺🇸 US 🇨🇦 CA
View on
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This table covers the relays that control the Ignition circuit. Typical signs include a click with no action, or a circuit that works only when you swap in a known-good relay. Swap with an identical relay in the fuse box before buying — it is the fastest test there is.

Oil Pressure Sender / Switch

Brand Part Number Markets Notes Buy
BECK/ARNLEY 2011315
🇺🇸 US 🇨🇦 CA
with Light
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CALORSTAT OS3513
🇺🇸 US 🇨🇦 CA
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ROSTRA 501514
🇺🇸 US 🇨🇦 CA
with Light
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STANDARD MOTOR PRODUCTS PS170
🇺🇸 US 🇨🇦 CA
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This table covers the senders and switches that report oil pressure to the gauge or lamp. Typical signs include a lamp that stays on, or a gauge that never moves. Confirm power and ground at the connector before replacing the sender or switch.

Radiator Fan Relay

Brand Part Number Markets Notes Buy
ÜRO PARTS Popular 8522310
🇺🇸 US 🇨🇦 CA
5 spade relay
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ÜRO PARTS Popular 8533176
🇺🇸 US 🇨🇦 CA
This relay is For different systems In different vehicles, be sure To confirm application In your specific vehicle prior To purchase.
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DORMAN 84601
🇺🇸 US 🇨🇦 CA
Relays - Universal4 Pin 30 Amp 12 Volt
Fitment notes — DORMAN 84601
Relays - Universal4 Pin 30 Amp 12 Volt
Motor Relay
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ROSTRA 600027
🇺🇸 US 🇨🇦 CA
Voltage: 12 Volts (Direct Current)
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STANDARD MOTOR PRODUCTS RY265T
🇺🇸 US 🇨🇦 CA
T-Series
Fitment notes — STANDARD MOTOR PRODUCTS RY265T
T-Series
Motor Relay
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STANDARD MOTOR PRODUCTS RY265
🇺🇸 US 🇨🇦 CA
Connector Shape: SquareFunctions: Relay
Fitment notes — STANDARD MOTOR PRODUCTS RY265
Connector Shape: SquareFunctions: RelayMounting Bracket(s) Included: No
Motor Relay
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STANDARD MOTOR PRODUCTS RY273
🇺🇸 US 🇨🇦 CA
Motor Relay
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UNITED MOTOR PRODUCTS RLY16
🇺🇸 US 🇨🇦 CA
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WELLS 1R1616
🇺🇸 US 🇨🇦 CA
Right Fanwith Air Conditioning
Fitment notes — WELLS 1R1616
Right Fanwith Air ConditioningMotor Relay
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WELLS 1R1621
🇺🇸 US 🇨🇦 CA
Left Fanwith Air Conditioning
Fitment notes — WELLS 1R1621
Left Fanwith Air ConditioningMotor Relay
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This table covers the relays that control the Radiator Fan circuit. Typical signs include a click with no action, or a circuit that works only when you swap in a known-good relay. Swap with an identical relay in the fuse box before buying — it is the fastest test there is.

Radiator Fan Switch

Economy

Brand Part Number Markets Notes Buy
SKP Popular SKTS151
🇺🇸 US 🇨🇦 CA
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Standard Replacement

Brand Part Number Markets Notes Buy
STANDARD MOTOR PRODUCTS Popular TS151
🇺🇸 US 🇨🇦 CA
Terminal Type: Blade
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BECK/ARNLEY 2011545
🇺🇸 US 🇨🇦 CA
2 Prong Switch 82C Degrees, Warmer Climates
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BECK/ARNLEY 2010809
🇺🇸 US 🇨🇦 CA
2 Prong Switch 92C Degrees, Standard Climates
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FACET 75005
🇺🇸 US 🇨🇦 CA
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WELLS 1S4391
🇺🇸 US 🇨🇦 CA
View on
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Brand Part Number Markets Notes Buy
CALORSTAT TS6994
🇺🇸 US 🇨🇦 CA
Combi Switch Function: Normally OpenConnector Shape: Rounded
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This table covers the Radiator Fan switches. Typical signs include a function that works intermittently, or a click without the accessory coming on. Inspect the connector behind the switch; heat-damaged terminals will kill the new part too.

Rear Window Wiper Relay

Brand Part Number Markets Notes Buy
STANDARD MOTOR PRODUCTS RY203
🇺🇸 US 🇨🇦 CA
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This table covers the relays that control the Rear Window Wiper circuit. Typical signs include a click with no action, or a circuit that works only when you swap in a known-good relay. Swap with an identical relay in the fuse box before buying — it is the fastest test there is.

Starter Motor Control Relay

Brand Part Number Markets Notes Buy
ÜRO PARTS 8533176
🇺🇸 US 🇨🇦 CA
View on
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This table covers the relays that control the Starter Motor Control circuit. Typical signs include a click with no action, or a circuit that works only when you swap in a known-good relay. Swap with an identical relay in the fuse box before buying — it is the fastest test there is.

Wiper Motor Relay

Brand Part Number Markets Notes Buy
ÜRO PARTS 8533176
🇺🇸 US 🇨🇦 CA
View on
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This table covers the relays that control the Wiper Motor circuit. Typical signs include a click with no action, or a circuit that works only when you swap in a known-good relay. Swap with an identical relay in the fuse box before buying — it is the fastest test there is.

Buying Electrical Switch & Relay Parts for a 1981 Saab 900

On this vehicle, the switch and relay system covers the switches, relays and flashers that route power to everything the driver touches.

  • Confirm you have the 2.0L L4 engine — every part on this page is matched to it.
  • Read the notes on each row for position, trim and spec qualifiers before you order.
  • Where labor overlaps, inspect the connector terminals behind any failed switch — heat damage there will kill the new part too.
  • Cross-reference the manufacturer part number against your old part or a service-manual listing.

Start with the largest groups on this page: Radiator Fan Relay and Horn Relay .

Frequently Asked Questions

How many electrical switch & relay parts fit the 1981 Saab 900?

Our catalog currently lists 49 electrical switch & relay parts for the 1981 Saab 900 across 15 subcategories and 11 brands, covering the 2.0L L4 engine. Each part is matched to the engine(s) it fits.

What are the signs of electrical switch & relay problems on a 1981 Saab 900?

Common symptoms include accessories that work intermittently, a click without action, or one function dead while its fuse tests fine. If you notice any of these, identify the affected subcategory above and cross-reference the part numbers listed.

What should I replace at the same time?

Where labor overlaps, inspect the connector terminals behind any failed switch — heat damage there will kill the new part too.

What do the market flags (US, CA, MX) on each part mean?

They show the market for which the manufacturer published application data for that part — where the vehicle was first sold, not where the part was made. If your 1981 Saab 900 was originally sold in the US, the safest choice is a part marked for the US market.

How do I make sure a part fits my 1981 Saab 900?

Every part on this page is matched to the 2.0L L4 engine. Then swap a suspect relay with an identical known-good one from the fuse box before buying — it is the fastest diagnostic there is. The notes column carries position and trim qualifiers where they apply.

Other Parts for the 1981 Saab 900

Electrical Switch & Relay Parts for Other Saab 900 Years

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Manufacturer names, model designations and part numbers are used for identification and fitment reference only. AutoFactsDB is an independent catalog and is not affiliated with, endorsed by, or sponsored by any vehicle manufacturer displayed on this page.