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Camco 54788 #1141 Replacement Bulbs 12V 18.4W BA15s Bayonet Base 21CP Incandescent Pack of 10

Camco 54788 #1141 12V 18.4W BA15s Single-Contact Bayonet Incandescent Replacement Bulbs, Pack of 10, for RV Dome and Backup Lights
Camco #1141 Replacement Bulbs, 18.4W, BA15s Bayonet Base, 12V Incandescent, 21CP, Pack of 10
 
List Price: $6.99
: $6.17
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Part Number: 54788
Manufacturer: Camco

Quantity in Stock :36

Availability: In Stock
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Camco 12V Incandescent Pack of 10 Camco 54788 -- #1141 Replacement Bulbs, BA15s Bayonet Base, 12V, 18.4W, 21CP

The go-to 10-pack for RV owners who need reliable #1141 incandescent bulbs on hand. Fits backup lights, dome lights, trunk lights, and a wide range of 12V interior RV fixtures. Standard BA15s single-contact bayonet base makes swapping fast and tool-free.

Stock Up on the RV Industry's Most Common 12V Bulb

The #1141 is one of the most widely used bulb types in automotive and RV applications. Whether you are replacing a burnt-out reverse light on your tow vehicle, restoring a dome light in your trailer, or refreshing a step light on your motorhome, the #1141 is almost certainly what the fixture takes. Camco's 54788 keeps ten of them on your shelf at once -- because when one goes, others are usually not far behind.

Each bulb in this pack is a direct, drop-in replacement for any fixture that accepts the standard #1141 bulb type. The BA15s single-contact bayonet mount locks in with a simple push-and-twist, and the 12.8V/18.4W rating keeps it compatible with virtually any 12V RV or automotive electrical system.

BA15s Bayonet Base

Single-contact bayonet mount -- push in and twist to lock. No tools needed. Same base used in the vast majority of RV interior and exterior 12V fixtures.

21 Candle Power Output

21CP delivers clear, warm incandescent light suitable for backup illumination, dome lighting, step lights, and reading lights in RV interiors.

Approx. 1,000-Hour Rated Life

Standard incandescent service life under normal 12V operating conditions. Buying a 10-pack ensures you are ready for the full RV season and beyond.

Broad Compatibility

Fits backup/reverse lights, dome lights, trunk lights, courtesy lights, and other RV and automotive fixtures designed for the #1141 bulb.

Where the #1141 Bulb Is Used in RVs

The #1141 shows up in more places on an RV than most owners realize. Common applications include:

  • Backup and reverse lights (Class A, B, and C motorhomes; fifth wheels; travel trailers)
  • Dome and ceiling lights in coach interiors
  • Entry step lights and courtesy lights
  • Trunk, storage compartment, and exterior utility lights
  • Tow vehicle backup and interior lighting (cars, trucks, SUVs)
  • Marine cabin and courtesy lighting (12V systems)

If your fixture takes a single-contact bayonet (BA15s) bulb at 12V and you are unsure of the exact trade number, check the old bulb -- #1141 is stamped or printed on the glass or base of the original in the vast majority of cases.

Why Buy a 10-Pack?

Incandescent bulbs are consumable items. A typical RV has multiple fixtures running the same #1141 type, and they tend to fail after similar hours of use. Stocking a 10-pack means you cover your entire rig in one purchase -- and you have spares ready for the road when a light fails far from a hardware store.

Compatibility with ANSI/Trade Number #1141

The #1141 is an ANSI-standardized trade number. Any fixture labeled for a #1141 bulb will accept these Camco replacements directly. Related trade numbers in the same BA15s family include #1156 (higher wattage, for turn signals and brake lights) and #1003 -- be sure your fixture specifies #1141 before ordering, as wattage and light output differ between these types.

Incandescent vs. LED Drop-Ins

The #1141 base (BA15s) is also available in LED retrofit versions. LED drop-ins draw less current and run cooler but may require load-resistor wiring on systems with LED-sensing flasher relays. These Camco 54788 bulbs are standard incandescent -- a true like-for-like replacement that works in any fixture and on any 12V flasher or circuit designed for incandescent loads. No modifications required.

Maintenance Tip

When a #1141 backup light bulb fails, also check the socket for corrosion at the contacts. A corroded socket will shorten the life of the replacement. Clean contacts with electrical contact cleaner and a small wire brush before installing the new bulb. A light application of dielectric grease on the base pins helps resist future corrosion in exterior fixtures.

Bulb Specifications

Trade/ANSI Number#1141
Camco Part Number54788
Vendor Part Number18-1704
UPC014717547888
Base TypeBA15s -- Single-Contact Bayonet
Rated Voltage12.8V
Wattage18.4W
Candle Power21 CP
Bulb TypeIncandescent
Rated LifeApprox. 1,000 hours
Quantity per Pack10 bulbs

Base and Fitment Reference

Base StandardBA15s (single-contact, single pin offset)
Contact TypeSingle-contact (one function per bulb -- not dual-filament)
System Voltage12V DC (automotive and RV standard)
Replaces Trade Numbers#1141 direct replacement
Related (not interchangeable)#1156 (same base, higher wattage); #1003 (same base, lower wattage)

Common RV Applications

Backup / Reverse LightsClass A, B, C motorhomes; travel trailers; fifth wheels
Dome / Ceiling LightsRV coach interior dome and reading lights
Step / Courtesy LightsEntry step and exterior courtesy lighting
Utility / CompartmentStorage bay, trunk, and utility compartment lights
Marine12V cabin and courtesy lighting
AutomotiveCars, trucks, SUVs using #1141 in interior or exterior sockets

What Is Included

Included10 x #1141 incandescent bulbs (BA15s base)
Not IncludedWiring harness, sockets, LED adapters, or any installation hardware

Important Information

  • Verify your fixture requires the #1141 specifically. The #1156 (same BA15s base, 26.9W) and #1003 (same base, 15W) are NOT interchangeable without risk of overloading sockets or underperforming in high-output circuits.
  • These are standard incandescent bulbs -- they generate heat during operation. Do not use in enclosed fixtures not rated for incandescent bulbs, and do not exceed the fixture's rated wattage.
  • These bulbs operate on 12V DC systems only. Do not install in 120V AC household fixtures.
  • Rated life of approximately 1,000 hours is based on standard operating conditions. Frequent on/off cycling, voltage spikes, or vibration common in towing environments may reduce bulb life.
  • Inspect and clean bulb sockets for corrosion before installing replacements, especially in exterior applications exposed to moisture.


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