A-Premium O2 Oxygen Sensor 2-Pack for 1997–2000 Honda Civic & del Sol — Heated 4‑Wire, 425 mm Lead

A-Premium O2 Oxygen Sensor 2-pack replaces upstream and downstream sensors on compatible 1997–2000 Honda Civic and 1997 Civic del Sol models, providing heated, threaded sensors with 4 wires and a 425 mm lead.

If your Honda is showing check-engine codes related to oxygen sensors or running less efficiently, this pair of A-Premium oxygen sensors is built to match factory fit and function for select late-1990s Civic and Civic del Sol engines. Each kit contains two threaded, heated sensors with a male connector and 4-wire construction, designed for direct replacement on automatic and CVT vehicles specified below. The sensors arrive boxed and ready for installation with no special tools beyond standard hand tools.

Which Honda models and positions does this sensor fit?

This A-Premium set fits upstream (B1S1) and downstream (B1S2) locations for specified Honda engines. It is intended for automatic and CVT-equipped vehicles only; it does not fit manual-transmission cars.

• 1997–2000 Honda Civic L4 1.6L — Automatic / CVT
• 1997 Honda Civic del Sol L4 1.6L — Automatic
• Positions: upstream (pre-catalyst) and downstream (post-catalyst)
• Not compatible with manual transmission models

What are the technical specifications and reference numbers?

The sensors are manufactured to match common OEM electrical and mechanical requirements and include cross-reference numbers to help confirm fit. Each sensor is heated and has a threaded mount for secure installation.

• Wire count: 4 (heated sensor with heater circuit)
• Overall length: 425 mm (lead length measured end-to-end)
• Mounting: threaded sensor body suitable for factory ports
• Connector: male gender; package includes two sensors per box
• Cross-reference numbers: 36531-P06-A12, 36531-P06-A11, 36531-P2R-A01, 250-24099, 234-4099 and variants

How difficult is installation and what tools are needed?

Installation is straightforward for anyone comfortable working under the vehicle and with basic automotive tools. No specialty tools are required, though an oxygen sensor socket or a deep 22 mm wrench will simplify removal and tightening.

• Typical tools: ratchet, oxygen sensor socket or 22 mm deep wrench, penetrating oil for stuck sensors
• Procedure: disconnect battery, unplug connector, remove old sensor, install new sensor, reconnect wiring
• Time estimate: about 30–90 minutes for both sensors depending on accessibility and rust
• Instructions: follow vehicle service manual torque and safety procedures

What quality assurances and warranty are included?

A-Premium constructs these sensors from corrosion-resistant materials and includes a warranty to protect against manufacturing defects. The sensors ship in protective packaging to avoid connector or lead damage during transit.

• Construction: premium materials for durability and extended service life
• Packaging: boxed set of two sensors to prevent damage in shipping
• Warranty: one-year unlimited-mileage guarantee from A-Premium for peace of mind
• Support: customer service available for fitment questions and warranty claims

Who is this for: This A-Premium O2 sensor 2-pack is aimed at owners and mechanics working on 1997–2000 Honda Civic or 1997 Civic del Sol 1.6L engines with automatic or CVT transmissions who need reliable, direct-fit heated oxygen sensors for upstream and downstream positions. If you require OEM-style wiring, an exact match to referenced part numbers, and a backed one-year warranty, this set is a practical, cost-effective replacement option.