2003 Subaru Forester Bulb Size
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Bulbs Chart
2003 Subaru Forester Headlight Bulb High Beam and Low Beam (9003)
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Premium Pick
Xtreme White Hybrid bulbs are great for down-road illumination, giving you the ability to see farther with greater safety and comfort. Made from high-quality quartz glass as well as alloy filaments that won't break or bend under pressure like regular metals can sometimes do! The Xtra white bulb's construction allows
PIAA 15224 H4 (9003 / HB2) Xtreme White Plus
Halogen Lights
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Brand-new
Introducing the RENO H4/9003 LED Headlight Bulb - a powerful lighting solution that combines advanced technology with superior performance. With its impressive features and unmatched reliability, this headlight bulb is designed to enhance your driving experience like never before. Featuring a remarkable power output of 60W and an impressive brightness...RENO H4/9003 LED Headlight Bulb
LED Lights
2003 Subaru Forester Fog Light Bulb Front (H3)
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Premium Pick
Intense white light with a slight blue tint for enhanced curb appeal. 55=110wattst provides 110 watts of light using 55 watts of power. Designed with a high-quality heat-resistant tube. Manufactured to SAE recommended specifications and DOT compliant.PIAA 15223 H3 Xtreme White Plus
Halogen Lights
2003 Subaru Forester Center High Mount Stop Light Bulb (912)
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Premium Pick
Energy-Saving, low power consumption for longer life span. Canbus error free, with no error after installation on most vehicles. Easy to install, just plug and play. Each lamp is powered by 15 pieces of high-power 2835 SMD LED lights(3 on the top and 12 on the sides). Only used for backup reverse lights.AUXITO 912 921 LED Bulbs
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Perfect for reverse lights
Upgrade your vehicle’s reverse lighting with Senzeal T15 LED Bulbs, delivering powerful illumination exactly where you need it. Perfect for all car models requiring T15, 912, or 921 bulbs, these LEDs are the ideal replacement for your reverse lights, providing a significant boost in brightness and safety. With just 3 watts...Senzeal 912 LED White Bulb
LED Lights
2003 Subaru Forester License Plate Light Bulb (168)
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Premium Pick
The Xtreme White Plus Series of high output replacement bulbs give drivers better color recognition, depth perception, and improved contrast over stock halogen bulbs, all while meeting DOT specification. Xtreme White Plus bulbs feature a crisp white light output that allows for better road illumination, while a blue top coatPIAA Xtreme White Plus High Performance
Halogen Lights
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For Car Dome, Map Door, Courtesy, License Plate Lights
No polarity no flip: it is truly no polarity, can light on two sides, no need more modification or flip, plug and play, easy install within 5 minutes.Marsauto LED Light Bulb 6000K Replacement Bulbs
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Inexpensive But Reliable
Design. The 194 HP3 LED bulb is a compact, simple LED replacement with proven performance. The single diffused optic spreads light in the original lamp, for OEM-style appearance and function. With its dual-lead contacts, it will fit snugly in the socket, and its light weight means it won't vibrate loose over...Diode Dynamics HP3 LED Bulbs
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Extremely Bright
Product benefits: Non-polarity design, 500% brighter than original halogen bulb, aircraft grade aluminum heat sink with Low temperature for Longer life span & Low Power Consumption (Up to 50,000 Hours Service Life).iBrightstar T10 168 LED Bulbs
LED Lights
2003 Subaru Forester Parking Light Bulb (168)
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Premium Pick
The Xtreme White Plus Series of high output replacement bulbs give drivers better color recognition, depth perception, and improved contrast over stock halogen bulbs, all while meeting DOT specification. Xtreme White Plus bulbs feature a crisp white light output that allows for better road illumination, while a blue top coatPIAA Xtreme White Plus High Performance
Halogen Lights
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For Car Dome, Map Door, Courtesy, License Plate Lights
No polarity no flip: it is truly no polarity, can light on two sides, no need more modification or flip, plug and play, easy install within 5 minutes.Marsauto LED Light Bulb 6000K Replacement Bulbs
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Inexpensive But Reliable
Design. The 194 HP3 LED bulb is a compact, simple LED replacement with proven performance. The single diffused optic spreads light in the original lamp, for OEM-style appearance and function. With its dual-lead contacts, it will fit snugly in the socket, and its light weight means it won't vibrate loose over...Diode Dynamics HP3 LED Bulbs
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Extremely Bright
Product benefits: Non-polarity design, 500% brighter than original halogen bulb, aircraft grade aluminum heat sink with Low temperature for Longer life span & Low Power Consumption (Up to 50,000 Hours Service Life).iBrightstar T10 168 LED Bulbs
LED Lights
2003 Subaru Forester Back Up Reverse Light Bulb (921)
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Best Choice
Replace your standard car lights with our robust Philips Vision LEDs that deliver dynamic lighting for your vehicle, both inside and out. The innovative design and unmatched performance of Philips Vision LEDs are available for brake and taillights, backup lights, dome lights, and license plate lights. These bulbs are coveredPhilips 12789LPB2 Bright White Vision
Halogen Lights
2003 Subaru Forester Trunk or Cargo Area Light (168)
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Premium Pick
The Xtreme White Plus Series of high output replacement bulbs give drivers better color recognition, depth perception, and improved contrast over stock halogen bulbs, all while meeting DOT specification. Xtreme White Plus bulbs feature a crisp white light output that allows for better road illumination, while a blue top coatPIAA Xtreme White Plus High Performance
Halogen Lights
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For Car Dome, Map Door, Courtesy, License Plate Lights
No polarity no flip: it is truly no polarity, can light on two sides, no need more modification or flip, plug and play, easy install within 5 minutes.Marsauto LED Light Bulb 6000K Replacement Bulbs
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Inexpensive But Reliable
Design. The 194 HP3 LED bulb is a compact, simple LED replacement with proven performance. The single diffused optic spreads light in the original lamp, for OEM-style appearance and function. With its dual-lead contacts, it will fit snugly in the socket, and its light weight means it won't vibrate loose over...Diode Dynamics HP3 LED Bulbs
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Extremely Bright
Product benefits: Non-polarity design, 500% brighter than original halogen bulb, aircraft grade aluminum heat sink with Low temperature for Longer life span & Low Power Consumption (Up to 50,000 Hours Service Life).iBrightstar T10 168 LED Bulbs
LED Lights
2003 Subaru Forester Dome Light Bulb (DE3175)
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Premium Quality
Product Benefits Super Bright Each LED festoon bulb has 12 pieces 2835 chipsets high brightness LED and is made with an aluminum body design for better heat dissipation Much brighter than original bulbs.No tools needed No modification of wire is needed. Socket type 31mm festoon Light Bulbs.Fit sockets: DE3175 DE3021 DE3022 DE3023 DE3175LL DE3021LL...Ruiandsion DE3175 LED Dome Light Bulb
LED Lights
2003 Subaru Forester Map Light Bulb (DE3175)
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Premium Quality
Product Benefits Super Bright Each LED festoon bulb has 12 pieces 2835 chipsets high brightness LED and is made with an aluminum body design for better heat dissipation Much brighter than original bulbs.No tools needed No modification of wire is needed. Socket type 31mm festoon Light Bulbs.Fit sockets: DE3175 DE3021 DE3022 DE3023 DE3175LL DE3021LL...Ruiandsion DE3175 LED Dome Light Bulb
LED Lights
2003 Subaru Forester Headlights
2003 Subaru Forester Tail Lights
Subaru Forester Bulb Size By Years
Goal: Help you quickly identify correct bulb sizes for a 2003 Subaru Forester so you buy compatible replacements. Many installers and online catalogs list different options, which creates confusion and unnecessary returns. This chart removes that guesswork and highlights common trade-offs like brightness versus lifespan.
Prerequisites and step by step: Use the chart with the car model and year selected, then match the listed bulb type to each lamp (head, fog, tail, turn). Assumption: sockets and housings are stock. Recommended validation is to confirm sizes with your owner’s manual or by removing the bulb for a physical check before ordering.
Validation, troubleshooting and wrap up: If a bulb doesn’t seat or flashes, re-check socket type and polarity, and consider CAN-bus resistors for LED upgrades. Some product links are affiliate; I may earn a commission at no extra cost to you. The chart aims to make selection reliable so installation feels straightforward.
2003 Subaru Forester specs
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