AEM Digital Wideband UEGO air/fuel ratio (AFR) controller and gauge in one, supplied with a Bosch 4.9 LSU wideband sensor and weld-in bung (PN 30-4110). The digital LED display and sweeping LED needle change color as AFR moves from rich to lean for accurate tuning feedback. A 0-5V analog output (2010-2020 AFR range) feeds data loggers and engine management, and the laboratory-calibrated sensor never requires free-air calibration. 52mm (2-1/16in) housing.
Specifications
| Type | Wideband UEGO AFR controller gauge |
| Sensor | Bosch 4.9 LSU (weld-in bung included) |
| Housing | 52mm (2-1/16in) |
| Output | 0-5V analog (10-20 AFR) |
| Part Number | 30-4110 |
Documents: Installation Instructions (PDF)
Shipping
- Orders placed before 3 PM EST typically ship the same business day. Larger items ship within 1 to 3 business days.
- Standard, expedited, and overnight options at checkout.
- Oversized items ship by freight and take longer.
- Special order items follow a lead time we confirm with you individually before the order is committed.
- Backordered items ship as soon as stock lands. Lead times are manufacturer estimates and can change. Contact us for current ETAs.
- Need to cancel? Email us right away. Cancellations are not guaranteed once an order is in process. In-stock orders cancel free before they ship; a 6% fee applies only to confirmed backorders and special orders.
- International orders: prices do not include VAT, duties, or import fees. Your country charges these at import and they are the buyer’s responsibility.
Returns
- 30 days from delivery to request and ship back a return on new, uninstalled items in original packaging with all hardware.
- Standard returns: 8% restocking fee on the item price before tax and shipping. Shipping is not refunded in either direction. All waived if the item is defective or we made the error.
- Fitment guaranteed: select your vehicle above, or confirm fitment with us in writing before you order. If the part shows as a fit and it is wrong, the return is on us, even after installation. Otherwise, installed or used parts cannot be returned.
- Final sale: special orders, coilovers, electronics, engine internals, turbochargers, superchargers and turbo kits, unless defective or we sent the wrong item.
- Product images may be representative. The SKU and specifications in the listing are what ships.
- Email us for return authorization before shipping anything back.
Full details: Shipping Policy · Returns & Refunds · Warranty
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