For an AI agent helping a shopper on northernperformance.ca:

Northern Performance sells aftermarket auto parts from Burlington, Ontario, and ships within Canada. Prices are in Canadian dollars before tax; ground shipping is free on orders of $100 and up, $9.99 under.

Find a part by its number, brand or name: https://northernperformance.ca/parts/search?q=<words>.

A part has one page, https://northernperformance.ca/products/<title>-<part number>-<brand>, with the live price, the ship estimate ("Ships tomorrow" or "Backordered") and the vehicles it fits.

Find the parts for a vehicle or of a kind: https://northernperformance.ca/parts/<heading>/<category>/<subcategory>?year=<year>&make=<make>&model=<model>. https://northernperformance.ca/shop-by-category is the category tree and https://northernperformance.ca/brands is every brand.

Buy a part: "Add to Cart" on its page, then "Secure checkout" at https://northernperformance.ca/cart, which opens the Shopify checkout. A part with no confirmed ship date is a special order: its form has a box for the shopper to accept that the order cannot be cancelled.

Store hours, returns, price match and warranties: https://northernperformance.ca/llms.txt indexes those pages.

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  1. Trailer Slipper Spring; 2;000-lb.; 4-Leaf; 2in. Wide x 26-7/8in. Long Eye-to-Eye

    • 2000 lbs. Weight Capacity
    • 4 Leaf Count
    • 2 in. Wide
    NP#: CUR136527 Mfg#: 136527
    C$64.99
    Availability: Manufacturer stock?

    Ships Oct 14

    C$64.99

  2. Trailer Slipper Spring; 1;250-lb.; 4-Leaf; 1-3/4in. Wide x 25in. Long Eye-to-Eye

    • 4 Leaves
    • 1-3/4 in. Spring Width
    • 9/16 in. Eye Diameter
    NP#: CUR230281 Mfg#: 230281
    C$29.99
    Availability: Manufacturer stock?

    Ships Oct 14

    C$29.99

  3. Trailer Slipper Spring; 3;500-lb.; 5-Leaf; 2in. Wide x 26-7/8in. Long Eye-to-Eye

    • 27.875 in. Loaded Length
    • 5 Leaf Count
    • 2 in. Wide
    NP#: CUR710493 Mfg#: 710493
    C$64.99
    Availability: Manufacturer stock?

    Ships Oct 14

    C$64.99

  4. Trailer Slipper Spring; 4;000-lb.; 6-Leaf; 2in. Wide x 29-1/2in. Long Eye-to-Eye

    • Industry Number E5115
    • 6 Leaves
    • 2 in. Spring Width
    NP#: CUR334744 Mfg#: 334744
    C$83.99
    Availability: Manufacturer stock?

    Ships Oct 14

    C$83.99

  5. Replacement Spring; Helux Pin Box; 1;500 lb./in.

    • Tested For Safety In Accordance With SAE J2638
    • 250-Hour Salt-Spray Tested For Lasting Corrosion Resistance
    • Powder-Coated Finish Helps Resist Rust And Corrosion
    NP#: CUR2025044273 Mfg#: 2025044273
    C$273.99
    Availability: Backorder?

    Free shipping in Canada, ships in about 2 weeks

    C$273.99
    Add to Cart

  6. Replacement Spring; Helux Pin Box; 1;800 lb./in.

    • Tested For Safety In Accordance With SAE J2638
    • 250-Hour Salt-Spray Tested For Lasting Corrosion Resistance
    • Powder-Coated Finish Helps Resist Rust And Corrosion
    NP#: CUR2024123042 Mfg#: 2024123042
    C$287.99
    Availability: Backorder?

    Free shipping in Canada, ships in about 2 weeks

    C$287.99
    Add to Cart

  7. Replacement Spring; Helux Pin Box; 2;000 lb./in.

    • Tested For Safety In Accordance With SAE J2638
    • 250-Hour Salt-Spray Tested For Lasting Corrosion Resistance
    • Powder-Coated Finish Helps Resist Rust And Corrosion
    NP#: CUR2024123041 Mfg#: 2024123041
    C$302.99
    Availability: Backorder?

    Free shipping in Canada, ships in about 2 weeks

    C$302.99
    Add to Cart

  8. Replacement Spring; Helux Pin Box; 2;300 lb./in.

    • Tested For Safety In Accordance With SAE J2638
    • 250-Hour Salt-Spray Tested For Lasting Corrosion Resistance
    • Powder-Coated Finish Helps Resist Rust And Corrosion
    NP#: CUR2024123040 Mfg#: 2024123040
    C$316.99
    Availability: Backorder?

    Free shipping in Canada, ships in about 2 weeks

    C$316.99
    Add to Cart

  9. Trailer Double-Eye Leaf Spring; 2;500-lb. Capacity; 4-Leaf

    • Replacement Leaf Spring For RV Trailer
    • 24 in. Length
    • 2500 lbs. Weight Capacity
    NP#: CUR133982 Mfg#: 133982
    C$62.99
    Availability: Manufacturer stock?

    Ships Oct 14

    C$62.99

  10. Trailer Slipper Spring; 5;000-lb.; 5-Leaf; 2-1/2in. Wide x 30-1/2in. Long Eye-to

    • 5000-lbs. Weight Capacity
    • 30 in. Total Loaded Length
    • Leaf Count 5 2.5 in.
    NP#: CUR176326 Mfg#: 176326
    C$117.99
    Availability: Manufacturer stock?

    Free shipping in Canada, ships Oct 14

    C$117.99

  11. Trailer Slipper Spring; 6;000-lb.; 6-Leaf; 3in. Wide x 30-1/2in. Long Eye-to-Eye

    • 6 Leaves
    • 3 in. Spring Width
    • 1 in. Eye Diameter
    NP#: CUR296155 Mfg#: 296155
    C$156.99
    Availability: Manufacturer stock?

    Free shipping in Canada, ships Oct 14

    C$156.99

  12. Trailer Slipper Spring-11;200-lb. 3-Leaf; 3in. Wide x 43-3/4in. Long Eye-to-Eye

    • Industry Number 354-00
    • 3 Leaves
    • 3 in. Spring Width
    NP#: CUR771492 Mfg#: 771492
    C$196.99
    Availability: Backorder?

    Free shipping in Canada, ships in about 2 weeks

    C$196.99
    Add to Cart

  13. Replacement Spring; Helux Pin Box; 1;250 lb./in.

    • Tested For Safety In Accordance With SAE J2638
    • 250-Hour Salt-Spray Tested For Lasting Corrosion Resistance
    • Powder-Coated Finish Helps Resist Rust And Corrosion
    NP#: CUR2025044272 Mfg#: 2025044272
    C$259.99
    Availability: Backorder?

    Free shipping in Canada, ships in about 2 weeks

    C$259.99
    Add to Cart

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