The 1971 Fiat 850 has 41 electrical bulb & socket parts with verified fitment on this page — 8 part types and 11 brands, covering both the 817cc L4 and the 903cc L4. Each part includes a manufacturer part number and application notes.
On the 1971 Fiat 850, the bulb and socket system covers every bulb and socket on the vehicle, from headlamps to instrument-cluster illumination. Most of the listed parts are Turn Signal Lamp Bulb (11 parts), Headlamp Socket (10 parts) and Instrument Panel Light Bulb (6 parts). The other 5 part types cover the remaining 14 parts.
The 1971 Fiat 850 was sold with both the 817cc L4 and the 903cc L4. 16 parts fit every engine; the other 25 are engine-specific. Each part shows which engine(s) it fits.
The most listed brands for 1971 Fiat 850 electrical bulb & socket parts are WAGNER (12 parts), SYLVANIA (9 parts) and PHILIPS (6 parts), plus 8 more brands. Quality grades include Standard Replacement, Extended Life and Extra Bright.
10 parts on this 1971 Fiat 850 page carry a "Popular" badge — the source catalog's flag for options frequently chosen for this vehicle — including WAGNER H6024 (Headlamp Bulb) and DORMAN 85810 (Headlamp Socket). Click any part number to see every vehicle that part fits.
Brake Light Bulb
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WAGNER Fits: all 1971 850 engines | 1016 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
This table covers the bulbs in the stop lamps. Typical signs include a dark lamp, flicker, or a bulb that keeps failing in one socket. If the same position keeps failing, replace the socket or repair the ground rather than chasing bulbs.
One part is listed for the 1971 Fiat 850 — WAGNER 1016.
Headlamp Bulb
Extra Bright (improved visibility, but shorter life)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SYLVANIA Fits: all 1971 850 engines | H6024XV | 🇺🇸 US 🇨🇦 CA | Xtra VisionColor Temperature: 3200 KV | View on Amazon |
| SYLVANIA Fits: all 1971 850 engines | H6024ST | 🇺🇸 US 🇨🇦 CA | Silver StarColor Temperature: 4000 KV | View on Amazon |
| WAGNER Fits: all 1971 850 engines | H6024BL | 🇺🇸 US 🇨🇦 CA | Up To 20% More Light | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WAGNER Popular Fits: all 1971 850 engines | H6024 | 🇺🇸 US 🇨🇦 CA | High Beam and Low BeamHalogen | View on Amazon |
| SYLVANIA Fits: all 1971 850 engines | H6024 | 🇺🇸 US 🇨🇦 CA | Base Type: PAR56Wattage: 40.00 W | View on Amazon |
This table covers the bulbs that light the headlamps. Typical signs include a dark lamp, a flicker over bumps, or a bulb that keeps failing on one side. Avoid touching a halogen capsule. Repeated failure in one socket is usually the socket or ground, not the bulb.
5 Headlamp Bulb parts for the 1971 Fiat 850 come from 2 brands — SYLVANIA and WAGNER. The "Popular" part is WAGNER H6024. Every part fits both the 817cc L4 and the 903cc L4.
In the Extra Bright (improved visibility, but shorter life) grade, SYLVANIA and WAGNER supply 3 parts: grouped under the catalog's "Extra Bright (improved visibility, but shorter life)" designation — the notes column spells out what sets them apart. A representative part number is SYLVANIA H6024XV.
In the Standard Replacement grade, WAGNER and SYLVANIA supply 2 parts: built to original-equipment specification. A representative part number is WAGNER H6024.
Part numbers include WAGNER H6024, SYLVANIA H6024XV and SYLVANIA H6024ST, among others listed above.
Headlamp Socket
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DORMAN Popular Fits: all 1971 850 engines | 85810 | 🇺🇸 US 🇨🇦 CA | 3-Wire/Terminal Seal Beam Lamp 4002 & 4005 Bulb | View on Amazon |
| DORMAN Popular Fits: all 1971 850 engines | 84790 | 🇺🇸 US 🇨🇦 CA | High Temperature Socket | View on Amazon |
| ACDELCO Fits: all 1971 850 engines | LS144 | 🇺🇸 US 🇨🇦 CA | Gold | View on Amazon |
| DORMAN Fits: all 1971 850 engines | 645998 | 🇺🇸 US 🇨🇦 CA | Bulb 4000, 4652, 4656, 5006, 6014, 6015, 6024, 6052, 6054, or 9003High Temperature Harness | View on Amazon |
| ROSTRA Fits: all 1971 850 engines | 610398 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| STANDARD MOTOR PRODUCTS Fits: all 1971 850 engines | HP3950 | 🇺🇸 US 🇨🇦 CA | Handy PackBlack | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: all 1971 850 engines | S526 | 🇺🇸 US 🇨🇦 CA | Black | View on Amazon |
| UNITED MOTOR PRODUCTS Fits: all 1971 850 engines | CON69 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| WELLS Fits: all 1971 850 engines | 6S1004 | 🇺🇸 US 🇨🇦 CA | Connector Shape: RectangularWiring Harness Length: 12.19 In | View on Amazon |
| WELLS Fits: all 1971 850 engines | 1P1338 | 🇺🇸 US 🇨🇦 CA | Wiring Harness Length: 8.5 In | View on Amazon |
This table covers the sockets that hold a headlamp bulb in the housing. Typical signs include a flicker over bumps, melted plastic, or a bulb that will not stay seated. Dielectric grease on the contacts slows corrosion. Do not force a bulb into a heat-damaged socket.
10 Headlamp Socket parts for the 1971 Fiat 850 come from 6 brands — DORMAN, STANDARD MOTOR PRODUCTS, WELLS and 3 other brands. The "Popular" part is DORMAN 85810. Every part fits both the 817cc L4 and the 903cc L4.
Instrument Panel Light Bulb
Extended Life
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PHILIPS Popular Fits: 903cc L4 | 1893LL | 🇺🇸 US 🇨🇦 CA | Longer Life | View on Amazon |
| SYLVANIA Fits: 903cc L4 | 1893LL | 🇺🇸 US 🇨🇦 CA | Base Type: BA9SLong Life | View on Amazon |
| WAGNER Fits: 903cc L4 | 1893LL | 🇺🇸 US 🇨🇦 CA | Long LifeMiniature Bayonet Base | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WAGNER Popular Fits: 903cc L4 | 1893 | 🇺🇸 US 🇨🇦 CA | Miniature Bayonet Base4.620 Watt | View on Amazon |
| HELLA Fits: 903cc L4 | 1893 | 🇺🇸 US 🇨🇦 CA | HalogenSocket Type Bulb: BA9S | View on Amazon |
| SYLVANIA Fits: 903cc L4 | 1893 | 🇺🇸 US 🇨🇦 CA | Base Type: BA9SWattage: 4.60 W | View on Amazon |
This table covers the replacement bulbs for the Instrument Panel Light. Typical signs include a dark lamp, flicker, or a bulb that keeps failing in one socket. If the same position keeps failing, replace the socket or repair the ground rather than chasing bulbs.
6 Instrument Panel Light Bulb parts are listed for the 1971 Fiat 850, from SYLVANIA, WAGNER, PHILIPS and 1 other brand. PHILIPS 1893LL carries the "Popular" badge.
The Extended Life section lists 3 options from PHILIPS, SYLVANIA and WAGNER — grouped under the catalog's "Extended Life" designation — the notes column spells out what sets them apart. PHILIPS 1893LL is listed in this group.
The Standard Replacement section: 3 options from WAGNER, HELLA and SYLVANIA. WAGNER 1893 is listed in this group.
This group includes PHILIPS 1893LL and the remaining parts above.
License Plate Lamp Bulb
Extended Life
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PHILIPS Fits: 903cc L4 | 89LL | 🇺🇸 US 🇨🇦 CA | Longer Life | View on Amazon |
| SYLVANIA Fits: 903cc L4 | 89LL | 🇺🇸 US 🇨🇦 CA | Long LifeBase Type: BA15S | View on Amazon |
| WAGNER Fits: 903cc L4 | 89LL | 🇺🇸 US 🇨🇦 CA | Long LifeSingle Contact Bayonet Base | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PHILIPS Popular Fits: 903cc L4 | 89 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| WAGNER Popular Fits: 903cc L4 | 89 | 🇺🇸 US 🇨🇦 CA | Single Contact Bayonet Base7.540 Watt | View on Amazon |
| SYLVANIA Fits: 903cc L4 | 89 | 🇺🇸 US 🇨🇦 CA | Base Type: BA15SWattage: 7.50 W | View on Amazon |
This table covers the bulbs that light the license plate. Typical signs include a dark lamp, flicker, or a bulb that keeps failing in one socket. If the same position keeps failing, replace the socket or repair the ground rather than chasing bulbs.
6 License Plate Lamp Bulb parts are listed for the 1971 Fiat 850, from PHILIPS, SYLVANIA and WAGNER. PHILIPS 89 carries the "Popular" badge.
The Extended Life section: 3 options from PHILIPS, SYLVANIA and WAGNER. PHILIPS 89LL is listed in this group.
The Standard Replacement section: 3 options from PHILIPS, WAGNER and SYLVANIA. PHILIPS 89 is listed in this group.
Listed part numbers: PHILIPS 89 and PHILIPS 89LL, plus the other parts above.
Parking Lamp Bulb
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WAGNER Fits: 903cc L4 | 1016 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
This table covers the bulbs in the parking lamps. Typical signs include a dark lamp, flicker, or a bulb that keeps failing in one socket. If the same position keeps failing, replace the socket or repair the ground rather than chasing bulbs.
This group shows a single part: WAGNER 1016.
Tail Lamp Bulb
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WAGNER Fits: 903cc L4 | 1016 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
This table covers the bulbs in the tail lamps. Typical signs include a dark lamp, flicker, or a bulb that keeps failing in one socket. If the same position keeps failing, replace the socket or repair the ground rather than chasing bulbs.
This group shows a single part: WAGNER 1016.
Turn Signal Lamp Bulb
Extended Life
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PHILIPS Fits: 903cc L4 | 1141LL | 🇺🇸 US 🇨🇦 CA | Longer Life | View on Amazon |
| SYLVANIA Fits: 903cc L4 | 1141LL | 🇺🇸 US 🇨🇦 CA | Long LifeBase Type: BA15S | View on Amazon |
| WAGNER Fits: 903cc L4 | 1141LL | 🇺🇸 US 🇨🇦 CA | Long LifeSingle Contact Bayonet Base | View on Amazon |
LED (instant-on, long life, energy-saving)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PHILIPS Popular Fits: 903cc L4 | 1156ALED | 🇺🇸 US 🇨🇦 CA | Ultinon LEDAmber | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HELLA Popular Fits: 903cc L4 | 1141 | 🇺🇸 US 🇨🇦 CA | IncandescentMiniature | View on Amazon |
| HELLA Popular Fits: 903cc L4 | 1156 | 🇺🇸 US 🇨🇦 CA | Brightness: 32.0 CPIncandescent | View on Amazon |
| GM GENUINE Fits: 903cc L4 | L1141 | 🇺🇸 US 🇨🇦 CA | Rear | View on Amazon |
| PHILIPS Fits: 903cc L4 | 1141 | 🇺🇸 US 🇨🇦 CA | Rear | View on Amazon |
| SYLVANIA Fits: 903cc L4 | 1141 | 🇺🇸 US 🇨🇦 CA | Base Type: BA15SWattage: 18.40 W | View on Amazon |
| WAGNER Fits: 903cc L4 | 1141 | 🇺🇸 US 🇨🇦 CA | Single Contact Bayonet Base18.430 Watt | View on Amazon |
| WAGNER Fits: 903cc L4 | 1016 | 🇺🇸 US 🇨🇦 CA | Front | View on Amazon |
This table covers the bulbs in the turn-signal lamps. Typical signs include a dark lamp, flicker, or a bulb that keeps failing in one socket. If the same position keeps failing, replace the socket or repair the ground rather than chasing bulbs.
11 Turn Signal Lamp Bulb parts are listed for the 1971 Fiat 850, from PHILIPS, WAGNER, SYLVANIA and 2 other brands. PHILIPS 1156ALED carries the "Popular" badge.
The Extended Life section: 3 options from PHILIPS, SYLVANIA and WAGNER. PHILIPS 1141LL is listed in this group.
In the LED (instant-on, long life, energy-saving) grade, PHILIPS supplies 1 part: grouped under the catalog's "LED (instant-on, long life, energy-saving)" designation — the notes column spells out what sets them apart. A representative part number is PHILIPS 1156ALED.
The Standard Replacement section: 7 options from HELLA, WAGNER, GM GENUINE and 2 other brands. HELLA 1141 is listed in this group.
Buying Electrical Bulb & Socket Parts for a 1971 Fiat 850
On this vehicle, the bulb and socket system covers every bulb and socket on the vehicle, from headlamps to instrument-cluster illumination.
- Match the engine first. Some electrical bulb & socket parts fit every engine; others are engine-specific. Each row shows which engine(s) it fits.
- Read the notes on each row for position, trim and spec qualifiers before you order.
- Where labor overlaps, replace bulbs in pairs so both sides age together, and put a smear of dielectric grease on the new socket contacts.
- Cross-reference the manufacturer part number against your old part or a service-manual listing.
Start with the largest groups on this page: Turn Signal Lamp Bulb and Headlamp Socket .
Frequently Asked Questions
How many electrical bulb & socket parts fit the 1971 Fiat 850?
Our catalog currently lists 41 electrical bulb & socket parts for the 1971 Fiat 850 across 8 subcategories and 11 brands, covering both the 817cc L4 and the 903cc L4. Each part is matched to the engine(s) it fits.
Do electrical bulb & socket parts differ between 1971 Fiat 850 engines?
Some do. 16 parts fit every engine; the other 25 are engine-specific. Each row (and the filter at the top) shows which. If you're unsure which engine you have, check the emissions label under the hood or the 8th character of your VIN.
What are the signs of electrical bulb & socket problems on a 1971 Fiat 850?
Common symptoms include a lamp that flickers over bumps, melted or discolored socket plastic, or bulbs that keep failing early on one side. 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, replace bulbs in pairs so both sides age together, and put a smear of dielectric grease on the new socket contacts.
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 1971 Fiat 850 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 1971 Fiat 850?
First match the engine — each row shows which engine(s) the part fits. Then repeated bulb failure in one position usually means a socket or ground problem, not bad bulbs — replace the socket rather than chase it. The notes column carries position and trim qualifiers where they apply.
Other Parts for the 1971 Fiat 850
Electrical Bulb & Socket Parts for Other Fiat 850 Years
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