EQ Motorhome Jack Identification Chart: Cylinders, Foot Pads & SL Models

Find the correct EQ Systems straight-leg hydraulic leveling jack, replacement cylinder and foot pad by identifying body diameter, retracted body length, mounting plate location and the original manufacturer part number. This guide uses the 2025 EQ Jack Replacement Cylinder & Foot Identification Chart and links to exact parts available at NewRVParts.

Do not identify a jack from its capacity or appearance alone. The same SL family may have older and newer lengths, different plate offsets, switches or foot sizes. Body length is not the same measurement as lifting stroke or overall deployed height. Confirm the complete jack stamp and original technical drawing before ordering.

Identify and measure your EQ hydraulic jack

Manufacturer reference 1Equalizer Systems original 2025 hydraulic jack identification chart — 2⅜-inch body plate-mount modelsOpen original manufacturer PDF
Equalizer Systems original 2025 hydraulic jack identification chart — 2⅜-inch body plate-mount models. This original factory page includes real jack diagrams, part numbers, body lengths and cylinder/foot references for the indicated plate-mount group; other diameters are on neighboring factory pages. Open the exact original Equalizer Systems factory diagram and part chart if the embedded viewer cannot load.
View jack measurement overview
EQ hydraulic leveling jack body and mounting plate measurement guide Original illustrative jack shows a cylindrical body, a side mounting plate, a telescoping ram, and a foot. Body length measured from cap to body bottom, body diameter across fixed cylinder, plate offset relative to top of body, and foot pad size measured across width. Body lengthfixed cylinder onlynot jack travel Plate offsetfrom capped body endto mounting plate Body diameter2⅜ / 2⅞ / 3⅜ infor chart families Foot width / shapeseparate MPN by model Original not-to-scale measuring aid — do not use for fabrication
Original identification illustration, not a dimensioned OEM installation print. Compare your actual jack with the EQ reference PDF, including the separate switch-on-leg illustrations.
See EQ's 2⅞-inch plate-mount jack drawing and parts chart

EQ's separate 2⅞-inch body chart covers models 7614 (SL 14), 7214 (SL 16) and 70073 (SL 24). The chart distinguishes body length, footpads and replacement cylinders. It notes that the SL 16 body length changed after 2023. Compare the number stamped on your installed jack before selecting a cylinder.

Manufacturer reference 2EQ Systems 2025 2 and 7 eighths inch plate mount hydraulic jack manufacturer body length and replacement cylinder chartOpen original manufacturer PDF

Open the full-size EQ jack drawing and part numbers if the viewer does not display.

Jack model and replacement-part examples

EQ manufacturer number relationships for SL 13, SL 15, and SL 16 jacks Three model groups: 7842A SL13 uses cylinder 3142A and foot 70385; 7636 SL15 uses cylinder 2943 and foot 7818; 7214 SL16 uses cylinder 1592EQ and foot 7849. Arrows are factory chart cross references, not physical installation connections. 7842A · SL 13 Cylinder → 3142A Foot → 70385 2⅜-in body / 16⅜-in long Verify jack model Hydraulic, not an electrictrailer tongue jack 7636 · SL 15 Cylinder → 2943 ✓ Foot → 7818 2⅜-in body / 19⅜-in long Verify jack model Complete hydraulic jack,not a tongue-jack drop leg 7214 · SL 16 Cylinder → 1592EQ Foot → 7849 ✓ 2⅞-in body / 21⅛-in long 2023 length revision Foot pad 7849Match the jack model Jack, cylinder and foot relationships from EQ's 2025 chart
Manufacturer MPN relationships redrawn from the 2025 reference. The arrows indicate part-number associations, not interchangeability between model families.

Replacement cylinders and footpads

EQ Systems 2943 hydraulic cylinder replacement for the 7636 SL15 leveling jackEQ 2943EQ replacement hydraulic cylinder used on the original 7636 SL15 jackView part details EQ Systems 7849 10 × 10-inch hydraulic leveling jack footpad and boltEQ 7849EQ 10 × 10-inch foot pad and mounting boltView part details

The 2943 listing is a replacement cylinder for the original EQ 7636 SL15 model in the manufacturer's chart, not the different 7636A cylinder (2943A). The 7849 10 × 10-in foot pad matches the listed 7614, 7214 and 70073 designs; measure the foot and verify its fastener arrangement before ordering.

Verify the hydraulic jack model before ordering: Equalizer identifies 7842A as an SL13 hydraulic jack, not an electric trailer tongue jack. Equalizer identifies 7636 as a complete SL15 hydraulic jack, not a tongue-jack drop leg. These items are shown for identification only until the replacement assembly can be confirmed.

EQ jack, cylinder and foot reference table

Compare the EQ jack model, body diameter, body length and mounting-plate position before selecting a replacement cylinder or foot. Some model numbers have multiple factory revisions; a matching part number alone does not confirm the installed configuration.

EQ jack Model Body Ø Body length Mount position Foot MPN Cylinder MPN Reference note
7841 SL 11 2⅜ in 15⅜ in Plate, 0 in 70385 3141 Match original build
7842 SL 13 early 2⅜ in 17⅜ in Plate, 0 in 70385 Not specified Obsolete factory version; contact EQ
7842 SL 13 later 2⅜ in 16⅜ in Plate, −⅞ in 70385 3142 Different from early 7842
7842A SL 13 2⅜ in 16⅜ in Plate, +2 in 70385 3142A Confirm original hydraulic jack number before ordering
7842REV SL 13 2⅜ in 16⅜ in Plate, +2 in 70445 3142A 10 × 10-in foot configuration
7636 SL 15 2⅜ in 19⅜ in Plate, 0 in 7818 2943 Confirm original hydraulic jack number before ordering
7636A SL 15 2⅜ in 19¼ in Plate, −⅝ in 70445 2943A Not the same cylinder as 7636
7614 SL 14 2⅞ in 18⅛ in Plate mount 7849 1113 Obsolete; contact EQ
7214 SL 16 2⅞ in 21⅛ in Plate mount 7849 1592EQ Before 2023: 20⅛-in body
70073 SL 24 2⅞ in 28⅜ in Plate mount 7849 3377 Obsolete; replaced by 70217
7134 SL 18 3⅜ in 22¾ in Plate +1 in 7821 1601EQ Match original build
70217 SL 24 3⅜ in 29½ in Plate +14½ in 70299 3144AEQ Pre-June 2023: 29-in body
7923 SL 24 3⅜ in 29½ in Plate +8½ in 7821 3184EQ Pre-June 2023: 29-in body
7848 SL 24 3⅜ in 29½ in Plate +14½ in 7821 3144EQ Pre-June 2023: 29-in body

Identify foot pads, cylinders and model revisions

  • 2⅜-in bodies: 7842A and the two 7842 revisions use different plate positions; 7636 and 7636A have different body lengths, foot numbers and cylinders.
  • 2⅞-in bodies: the 7849 foot pad belongs to specific SL14, SL16 and SL24 configurations. The old 7614 and 70073 numbers are flagged obsolete in the current chart.
  • 3⅜-in bodies: the current 70217, 7923 and 7848 versions use different cylinder numbers (3144AEQ, 3184EQ and 3144EQ). Do not assume NewRVParts 3144A is equivalent to either version without a manufacturer cross-reference.
  • Historical documents: EQ's older charts can show different foot references and previous body lengths. This table follows the 2025 replacement chart; compare any field revision bulletin for the actual installed equipment.

EQ factory replacement chart and service documents

EQ 2025 Cylinder & Foot Identification Chart (PDF) EQ parts-identification document library

This is a selection reference, not installation instructions. Hydraulic jacks and their attachments support high loads; follow approved service procedures and the original chassis drawings when selecting or replacing a cylinder or foot.

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