Identify 6-Inch Oval Trailer Lights

A missing oval trailer light can be difficult to replace when the old lens has no readable part number. Begin with how it was mounted: recessed rubber grommet, surface flange, or recessed flange. Then compare the connector and function. Six-inch oval is a common shape, not a guarantee of fit.

Find the correct mounting arrangement

Recessed grommet

Rubber surround holds the light in a shaped panel opening. Check the PL-3 plug and grommet.

Surface flange

The lamp's exterior flange fastens onto the body panel. Some styles are hardwired.

Recessed flange

A flange is visible outside, while the body of the light sits inside the panel opening.

These are simplified mounting illustrations, not scale drawings or cutout templates.

Optronics specifies a 6.85 × 2.50-inch rounded opening for its A70GB grommet, with 1.25-inch corner radius. Do not use that measurement for a surface-flange lamp. Verify the existing panel and grommet first.

Check these details on your original light

Measure the mounting opening, visible lens and available depth separately.
Identify a three-pin PL-3 connection, hardwired leads, or separate backup-light circuit.
Confirm whether the part is a rear stop/turn/tail lamp, amber side marker/turn lamp or combination reverse light.
Determine whether you need one lamp, a paired kit with mounting hardware or only reflector trim.
Compare the exact product number before changing mounting systems.

Do not choose by oval shape alone. The amber STL75AB serves as a side marker/turn lamp. STL1211RCFHPGP includes backup lighting. A78RXBP is a red reflector ring only, not an electrical lamp.

Optronics six-inch oval parts comparison

Part number	Mount	Lighting function	Connection
ST70RBP	Recessed grommet	Red incandescent stop/turn/tail light	Three-pin PL-3
TLL12RK	Recessed grommet	Pair of red six-LED stop/turn/tail lights	PL-3 pigtails
STL75AB	Recessed grommet	Amber nine-LED mid-ship side turn/marker	Three-pin PL-3
STL73RK	Surface flange	Red six-LED stop/turn/tail light with chrome trim	Hardwired
STL1211RCFHPGP	Surface flange	Clear-lens stop/turn/tail/backup light	Two female PL-3 plugs
STL111RFB	Recessed flange	Red GloLight stop/turn/tail lamp	Three-pin PL-3
A78RXBP	Reflex trim only	Red reflector trim ring	No wires or light source

Matching the original housing and connector is more reliable than comparing only its nominal length.

Compare actual part photographs and listings

Use these exact product links to review condition, current availability and any additional specifications.

Recessed grommet

Look for rubber around the light and a panel opening behind it.

Optronics ST70RBP red incandescent stop/turn/tail light product photograph

Optronics ST70RBP — Red incandescent stop/turn/tail lightA lamp-only part. Confirm the original grommet and matching PL-3 connector.View listing and availability

Optronics TLL12RK pair of red six-led stop/turn/tail lights product photograph

Optronics TLL12RK — Pair of red six-LED stop/turn/tail lightsA retail pair containing STL12RB lamps, A70GB grommets and A45PB pigtails.View listing and availability

Optronics STL75AB amber nine-led mid-ship side turn/marker product photograph

Optronics STL75AB — Amber nine-LED mid-ship side turn/markerThis amber side light does not replace a red rear stop/turn/tail lamp.View listing and availability

Surface flange

A low-profile lamp attaches over the outer panel without a recessed lamp-sized cutout.

Optronics STL73RK red six-led stop/turn/tail light with chrome trim product photograph

Optronics STL73RK — Red six-LED stop/turn/tail light with chrome trimThe A78CB1 chrome surround comes with this kit; no lamp-sized panel cutout is required.View listing and availability

Optronics STL1211RCFHPGP clear-lens stop/turn/tail/backup light product photograph

Optronics STL1211RCFHPGP — Clear-lens stop/turn/tail/backup lightA 22-LED lamp with a separate backup function. Match the reverse circuit and connectors.View listing and availability

Recessed flange

A visible rim surrounds a body that still enters an opening behind the panel.

Optronics STL111RFB red glolight stop/turn/tail lamp product photograph

Optronics STL111RFB — Red GloLight stop/turn/tail lampA recessed body with an exterior flange. Verify panel opening and depth.View listing and availability

Reflex trim only

A separate reflector ring may snap onto a compatible flange but contains no light source.

Optronics A78RXBP red reflector trim ring product photograph

Optronics A78RXBP — Red reflector trim ringFits specified oval surface-flange families. A reflector accessory, not a working lamp.View listing and availability

UsedRVParts product viewing and pickup in Kelowna are by appointment. Check individual listings for their condition and availability.

Inventario de piezas para vehículos recreativos nuevo y actualizado: consulte con frecuencia

Siempre estamos agregando piezas de RV nuevas y usadas a nuestro inventario, así que asegúrese de volver a consultarlo periódicamente.

Si no ve la pieza que necesita hoy, es posible que aún la tengamos en stock: nuestra base de datos interna incluye miles de piezas de vehículos recreativos nuevas que aún no están publicadas en línea.

Envíenos un mensaje de texto o correo electrónico con el número de producto o modelo y verificaremos la disponibilidad de inmediato.

Nuestros productos

Identify Six-Inch Oval Trailer Lights by Mount, Connector & Function