Pearl clinic · Consult rail
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Pearl clinic chart — sage consult rails, lavender accents, and gold seal marks on grid paper.
Ships within 48 hours · Estimated delivery Sep 20 - Sep 25
Grid-paper consult sheet with pearl seals — soft sage briefing beside the lavender chart body.
Tensioner arm bottomed out or stuck (loss of spring tension)
Manufacturer OEM Part Number Detroit Diesel A4709970045 Freightliner Truck Parts DDEA4709970045 Mack 590GB356 Volvo 21048511 Mack 21048511
and engine serial number against your application before ordering
Mack: 745-103009RX
Cummins 4384812 Dual Probe Exhaust Temperature Sensor Replacement OCP Tensioner arm bottomed out orAftermarket dual probe exhaust gas temperature (EGT) sensor module for Cummins EPA13 ISX and QSX 12 liter engines, supplied by PAI Industries (PAI 050727) as a direct replacement for Cummins OEM 4384812. The sensor reports pre and post SCR exhaust temperatures to the engine ECM so the aftertreatment controller can manage DEF dosing and DPF regeneration windows. Threaded fittings install into the exhaust gas temperature module bracket on the SCR DPF