Advance Truck Parts USA K-3438 4308829 Eaton Fuller rotary X-Y shift position sensor featuring a black polymer housing, white mounting flange, and metal-lined bolt eyelets

Advance Truck Parts USA top-down perspective displaying the central shift rail opening, internal actuator alignment slot, and connector layout

Advance Truck Parts USA end-on diagnostic view showing the multi-pin electrical terminal connector housing and internal gold contact pins for automated transmission feedback

K-3438 4308829 Eaton Fuller X-Y Shift Position Sensor Kit | ATP W072172

Name: K-3438 4308829 Eaton Fuller X-Y Shift Position Sensor Kit | ATP W072172
Brand: Advance Truck Parts USA
SKU: W072127
Price: 84.99 USD
Availability: InStock

Advance Truck Parts USA

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Description

K-3438 4308829 Eaton Fuller X-Y Shift Position Sensor Kit

SKU: W072172 | Brand: Advance Truck Parts USA (ATP USA)

The ATP USA K-3438 transmission position sensor kit is an engineered replacement for Eaton Fuller automated transmissions. Designed to monitor the transmission shift rail directly, this sensor delivers accurate electronic positioning feedback to the ECU for smooth and dependable automated gear shifts.

Kit Includes:

1x Heavy-Duty Rotary Shift Position Sensor (Replaces 4308829)
4x #10-24 Mounting Screws (Two 1-1/4" and Two 1-1/2")

Note: Replacement seal/O-ring is not included.

Cross-Reference & OEM Interchange:

Brand / OEM	Part Number
ATP USA SKU	W072172
Eaton Fuller	K-3438, K3438, 4308829
Volvo	85105830
Mack	3088-K3438
Detroit Diesel / GMC	88958883

For Pigtail use Pigtail for K3438 4308829 Transmission Position Sensor

Common Applications

Directly fits select heavy-duty commercial trucks equipped with Eaton Fuller AutoShift & UltraShift transmission models, including:

RTLO Series: RTLO-14918A-AS2, RTLO-16918A-AS3, RTLO-18918A-AS2, RTLO-20918A-AS3
RTO Series: RTO-10910B-DM3, RTO-14910B-AS2, RTO-16910B-AS3, RTO-16910C-AS2
FO / FM Series: FO-16E310C-VAS, FO-18E313A-VHP, FO-22E318B-VXP, FM-14E310B-LAS

Same-day shipping available on orders placed before daily cutoff. 1-Year Warranty included.

Shipping information

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Same-Day Shipping Cutoffs

Monday – Friday: Order by 5:30 PM ET
Saturday: Order by 11:30 AM ET

Free Local Pickup

Location: Sunrise, Florida
Ready Time: Free 1-hour warehouse pickup for in-stock items.

Overnight & Weekend Delivery

Standard Overnight: Delivered on the next business day (Monday – Friday).
Friday Overnight Orders: Delivered on Monday by default.
Saturday Delivery: If you need your order delivered on Saturday, you must select a specific "Saturday Delivery" option at checkout (subject to carrier availability).

Live Shipping Rates: Our website provides live shipping rates. Simply add the item to your cart and enter your ZIP code to instantly view all available shipping options before completing your purchase.

Next-Business-Day Delivery: Next-business-day delivery is available on many items when an overnight shipping option is selected before our daily shipping cutoff. Saturday delivery must be selected separately when available.